Tarzan was not yet fully revenged. There were manymillions of Germans yet alive -- enough to keep Tarzanpleasantly occupied the balance of his life, and yet notenough, should he kill them all, to recompense him for thegreat loss he had suffered -- nor could the death of all thosemillion Germans bring back his loved one.

While in the German camp in the Pare Mountains, whichlie just east of the boundary line between German and BritishEast Africa, Tarzan had overheard enough to suggest thatthe British were getting the worst of the fighting in Africa. Atfirst he had given the matter but little thought, since, afterthedeath of his wife, the one strong tie that had held him tocivilization, he had renounced all mankind, considering him-self no longer man, but ape.

After accounting for Schneider as satisfactorily as lay withinhis power he circled Kilimanjaro and hunted in the foothillsto the north of that mightiest of mountains as he had dis-covered that in the neighborhood of the armies there was nohunting at all. Some pleasure he derived through conjuringmental pictures from time to time of the German he had leftin the branches of the lone tree at the bottom of the high-walled gulch in which was penned the starving lion. Hecould imagine the man's mental anguish as he became weak-ened from hunger and maddened by thirst, knowing thatsooner or later he must slip exhausted to the ground wherewaited the gaunt man-eater. Tarzan wondered if Schneiderwould have the courage to descend to the little rivulet forwater should Numa leave the gulch and enter the cave, andthen he pictured the mad race for the tree again when thelion charged out to seize his prey as he was certain to do,since the clumsy German could not descend to the rivuletwithout making at least some slight noise that would attractNuma's attention.

But even this pleasure palled, and more and more the ape-man found himself thinking of the English soldiers fightingagainst heavy odds and especially of the fact that it was Ger-mans who were beating them. The thought made him lowerhis head and growl and it worried him not a little -- a bit, per-haps, because he was finding it difficult to forget that he wasan Englishman when he wanted only to be an ape. And atlast the time came when he could not longer endure thethought of Germans killing Englishmen while he hunted insafety a bare march away.

His decision made, he set out in the direction of the Germancamp, no well-defined plan formulated; but with the generalidea that once near the field of operations he might find anopportunity to harass the German command as he so wellknew how to do. His way took him along the gorge close tothe gulch in which he had left Schneider, and, yielding to anatural curiosity, he scaled the cliffs and made his way to theedge of the gulch. The tree was empty, nor was there sign ofNuma, the lion. Picking up a rock he hurled it into the gulch,where it rolled to the very entrance to the cave. Instantly thelion appeared in the aperture; but such a different-looking lionfrom the great sleek brute that Tarzan had trapped there twoweeks before. Now he was gaunt and emaciated, and when hewalked he staggered.

"Where is the German?" shouted Tarzan. "Was he goodeating, or only a bag of bones when he slipped and fell fromthe tree?"

Numa growled. "You look hungry, Numa," continued theape-man. "You must have been very hungry to eat all thegrass from your lair and even the bark from the tree as far upas you can reach. Would you like another German?" andsmiling he turned away.

A few minutes later he came suddenly upon Bara, the deer,asleep beneath a tree, and as Tarzan was hungry he made aquick kill, and squatting beside his prey proceeded to eat hisfill. As he was gnawing the last morsel from a bone his quickears caught the padding of stealthy feet behind him, andturning he confronted Dango, the hyena, sneaking upon him.With a growl the ape-man picked up a fallen branch andhurled it at the skulking brute. "Go away, eater of carrion!"he cried; but Dango was hungry and being large and power-ful he only snarled and circled slowly about as though watch-ing for an opportunity to charge. Tarzan of the Apes knewDango even better than Dango knew himself. He knew thatthe brute, made savage by hunger, was mustering its couragefor an attack, that it was probably accustomed to man andtherefore more or less fearless of him and so he unslung hisheavy spear and laid it ready at his side while he continuedhis meal, all the time keeping a watchful eye upon the hyena.

He felt no fear, for long familiarity with the dangers of hiswild world had so accustomed him to them that he took what-ever came as a part of each day's existence as you accept thehomely though no less real dangers of the farm, the range, orthe crowded metropolis. Being jungle bred he was readyto protect his kill from all comers within ordinary limitationsof caution. Under favorable conditions Tarzan would faceeven Numa himself and, if forced to seek safety by flight, hecould do so without any feeling of shame. There was nobraver creature roamed those savage wilds and at the sametime there was none more wise -- the two factors that hadpermitted him to survive.

Dango might have charged sooner but for the savagegrowls of the ape-man -- growls which, coming from humanlips, raised a question and a fear in the hyena's heart. Hehad attacked women and children in the native fields and hehad frightened their men about their fires at night; but henever had seen a man-thing who made this sound that re-minded him more of Numa angry than of a man afraid.

When Tarzan had completed his repast he was about torise and hurl a clean-picked bone at the beast before he wenthis way, leaving the remains of his kill to Dango; but a sud-den thought stayed him and instead he picked up the carcassof the deer, threw it over his shoulder, and set off in thedirec-tion of the gulch. For a few yards Dango followed, growling,and then realizing that he was being robbed of even a tasteof the luscious flesh he cast discretion to the winds andcharged. Instantly, as though Nature had given him eyes inthe back of his head, Tarzan sensed the impending danger and,dropping Bara to the ground, turned with raised spear. Farback went the brown, right hand and then forward, lightning-like, backed by the power of giant muscles and the weight ofhis brawn and bone. The spear, released at the right instant,drove straight for Dango, caught him in the neck where itjoined the shoulders and passed through the body.

When he had withdrawn the shaft from the hyena Tarzanshouldered both carcasses and continued on toward the gulch.Below lay Numa beneath the shade of the lone tree and at theape-man's call he staggered slowly to his feet, yet weak as hewas, he still growled savagely, even essaying a roar at the sightof his enemy. Tarzan let the two bodies slide over the rimof the cliff. "Eat, Numa!" he cried. "It may be that I shallneed you again." He saw the lion, quickened to new life atthe sight of food, spring upon the body of the deer and thenhe left him rending and tearing the flesh as he bolted greatpieces into his empty maw.

The following day Tarzan came within sight of the Germanlines. From a wooded spur of the hills he looked down uponthe enemy's left flank and beyond to the British lines. Hisposition gave him a bird's-eye view of the field of battle, andhis keen eyesight picked out many details that would not havebeen apparent to a man whose every sense was not trainedto the highest point of perfection as were the ape-man's. Henoted machine-gun emplacements cunningly hidden from theview of the British and listening posts placed well out in NoMan's Land.

As his interested gaze moved hither and thither from onepoint of interest to another he heard from a point upon thehillside below him, above the roar of cannon and the crackof rifle fire, a single rifle spit. Immediately his attention wascentered upon the spot where he knew a sniper must be hid.Patiently he awaited the next shot that would tell him moresurely the exact location of the rifleman, and when it came hemoved down the steep hillside with the stealth and quietnessof a panther. Apparently he took no cognizance of where hestepped, yet never a loose stone was disturbed nor a twigbroken -- it was as though his feet saw.

Presently, as he passed through a clump of bushes, he cameto the edge of a low cliff and saw upon a ledge some fifteenfeet below him a German soldier prone behind an embank-ment of loose rock and leafy boughs that hid him from theview of the British lines. The man must have been an ex-cellent shot, for he was well back of the German lines, firingover the heads of his fellows. His high-powered rifle wasequipped with telescope sights and he also carried binocularswhich he was in the act of using as Tarzan discovered him,either to note the effect of his last shot or to discover a newtarget. Tarzan let his eye move quickly toward that part ofthe British line the German seemed to be scanning, his keensight revealing many excellent targets for a rifle placed so highabove the trenches.

The Hun, evidently satisfied with his observations, laid asidehis binoculars and again took up his rifle, placed its butt inthe hollow of his shoulder and took careful aim. At the sameinstant a brown body sprang outward from the cliff above him.There was no sound and it is doubtful that the German everknew what manner of creature it was that alighted heavilyupon his back, for at the instant of impact the sinewy fingersof the ape-man circled the hairy throat of the Boche. Therewas a moment of futile struggling followed by the suddenrealization of dissolution -- the sniper was dead.

Lying behind the rampart of rocks and boughs, Tarzanlooked down upon the scene below. Near at hand were thetrenches of the Germans. He could see officers and men mov-ing about in them and almost in front of him a well-hiddenmachine gun was traversing No Man's Land in an oblique di-rection, striking the British at such an angle as to make it dif-ficult for them to locate it.

Tarzan watched, toying idly with the rifle of the dead Ger-man. Presently he fell to examining the mechanism of thepiece. He glanced again toward the German trenches andchanged the adjustment of the sights, then he placed the rifle tohis shoulder and took aim. Tarzan was an excellent shot. Withhis civilized friends he had hunted big game with the weaponsof civilization and though he never had killed except for foodor in self-defense he had amused himself firing at inanimatetargets thrown into the air and had perfected himself in theuse of firearms without realizing that he had done so. Nowindeed would he hunt big game. A slow smile touched his lipsas his finger closed gradually upon the trigger. The riflespoke and a German machine gunner collapsed behind hisweapon. In three minutes Tarzan picked off the crew of thatgun. Then he spotted a German officer emerging from a dug-out and the three men in the bay with him. Tarzan was care-ful to leave no one in the immediate vicinity to question howGermans could be shot in German trenches when they wereentirely concealed from enemy view.

Again adjusting his sights he took a long-range shot at adistant machine-gun crew to his right. With calm deliberationhe wiped them out to a man. Two guns were silenced. Hesaw men running through the trenches and he picked offseveral of them. By this time the Germans were aware thatsomething was amiss -- that an uncanny sniper had discovereda point of vantage from which this sector of the trenches wasplainly visible to him. At first they sought to discover hislocation in No Man's Land; but when an officer looking overthe parapet through a periscope was struck full in the backof the head with a rifle bullet which passed through his skulland fell to the bottom of the trench they realized that it wasbeyond the parados rather than the parapet that they shouldsearch.

One of the soldiers picked up the bullet that had killed hisofficer, and then it was that real excitement prevailed in thatparticular bay, for the bullet was obviously of German make.Hugging the parados, messengers carried the word in bothdirections and presently periscopes were leveled above theparados and keen eyes were searching out the traitor. It didnot take them long to locate the position of the hidden sniperand then Tarzan saw a machine gun being trained upon him.Before it had gotten into action its crew lay dead about it; butthere were other men to take their places, reluctantly perhaps;but driven on by their officers they were forced to it and atthe same time two other machine guns were swung around to-ward the ape-man and put into operation.

Realizing that the game was about up Tarzan with a fare-well shot laid aside the rifle and melted into the hills behindhim. For many minutes he could hear the sputter of machine-gun fire concentrated upon the spot he had just quit andsmiled as he contemplated the waste of German ammunition.

"They have paid heavily for Wasimbu, the Waziri, whomthey crucified, and for his slain fellows," he mused; "but forJane they can never pay -- no, not if I killed them all."

After dark that night he circled the flanks of both armiesand passed through the British out-guards and into the Britishlines. No man saw him come. No man knew that he was there.

Headquarters of the Second Rhodesians occupied a shel-tered position far enough back of the lines to be compara-tively safe from enemy observation. Even lights were per-mitted, and Colonel Capell sat before a field table, on whichwas spread a military map, talking with several of his officers.A large tree spread above them, a lantern sputtered dimlyupon the table, while a small fire burned upon the groundclose at hand. The enemy had no planes and no other ob-servers could have seen the lights from the German lines.

The officers were discussing the advantage in numbers pos-sessed by the enemy and the inability of the British to morethan hold their present position. They could not advance. Al-ready they had sustained severe losses in every attack and hadalways been driven back by overwhelming numbers. Therewere hidden machine guns, too, that bothered the colonel con-siderably. It was evidenced by the fact that he often revertedto them during the conversation.

"Something silenced them for a while this afternoon," saidone of the younger officers. "I was observing at the time andI couldn't make out what the fuss was about; but they seemedto be having a devil of a time in a section of trench on theirleft. At one time I could have sworn they were attacked inthe rear -- I reported it to you at the time, sir, you'll recall--for the blighters were pepperin' away at the side of that bluffbehind them. I could see the dirt fly. I don't know what itcould have been."

There was a slight rustling among the branches of the treeabove them and simultaneously a lithe, brown body droppedin their midst. Hands moved quickly to the butts of pistols;but otherwise there was no movement among the officers.First they looked wonderingly at the almost naked white manstanding there with the firelight playing upon rounded muscles,took in the primitive attire and the equally primitive arma-ment and then all eyes turned toward the colonel.

"Who the devil are you, sir?" snapped that officer.

"Tarzan of the Apes," replied the newcomer.

"Oh, Greystoke!" cried a major, and stepped forward with outstretched hand.

"Preswick," acknowledged Tarzan as he took the proffered hand.

"I didn't recognize you at first," apologized the major. "Thelast time I saw you you were in London in evening dress.Quite a difference -- 'pon my word, man, you'll have to admitit.

Tarzan smiled and turned toward the colonel. "I overheardyour conversation," he said. "I have just come from behindthe German lines. Possibly I can help you."

The colonel looked questioningly toward Major Preswickwho quickly rose to the occasion and presented the ape-manto his commanding officer and fellows. Briefly Tarzan toldthem what it was that brought him out alone in pursuit of theGermans.

"And now you have come to join us?" asked the colonel.

Tarzan shook his head. "Not regularly," he replied. "Imust fight in my own way; but I can help you. Whenever Iwish I can enter the German lines."

Capell smiled and shook his head. "It's not so easy as youthink," he said; "I've lost two good officers in the last weektrying it -- and they were experienced men; none better in theIntelligence Department."

"Is it more difficult than entering the British lines?" askedTarzan.

The colonel was about to reply when a new thought ap-peared to occur to him and he looked quizzically at the ape-man. "Who brought you here?" he asked. "Who passed youthrough our out-guards?"

"I have just come through the German lines and yours andpassed through your camp," he replied. "Send word to as-certain if anyone saw me."

"But who accompanied you?" insisted Capell.

"I came alone," replied Tarzan and then, drawing himself tohis full height, "You men of civilization, when you come intothe jungle, are as dead among the quick. Manu, the monkey,is a sage by comparison. I marvel that you exist at all -- onlyyour numbers, your weapons, and your power of reason-ing save you. Had I a few hundred great apes with your reason-ing power I could drive the Germans into the ocean as quicklyas the remnant of them could reach the coast. Fortunate it isfor you that the dumb brutes cannot combine. Could they,Africa would remain forever free of men. But come, can Ihelp you? Would you like to know where several machine-gun emplacements are hidden?"

The colonel assured him that they would, and a momentlater Tarzan had traced upon the map the location of threethat had been bothering the English. "There is a weak spothere," he said, placing a finger upon the map. "It is held byblacks; but the machine guns out in front are manned bywhites. If -- wait! I have a plan. You can fill that trenchwith your own men and enfilade the trenches to its right withtheir own machine guns."

Colonel Capell smiled and shook his head. "It sounds veryeasy," he said.

"It IS easy -- for me," replied the ape-man. "I can emptythat section of trench without a shot. I was raised in thejungle -- I know the jungle folk -- the Gomangani as well asthe others. Look for me again on the second night," and heturned to leave.

"Wait," said the colonel. "I will send an officer to pass youthrough the lines."

Tarzan smiled and moved away. As he was leaving thelittle group about headquarters he passed a small figurewrapped in an officer's heavy overcoat. The collar was turnedup and the visor of the military cap pulled well down over theeyes; but, as the ape-man passed, the light from the fire illumi-nated the features of the newcomer for an instant, revealingto Tarzan a vaguely familiar face. Some officer he had knownin London, doubtless, he surmised, and went his way throughthe British camp and the British lines all unknown to thewatchful sentinels of the out-guard.

Nearly all night he moved across Kilimanjaro's foothills,tracking by instinct an unknown way, for he guessed that whathe sought would be found on some wooded slope higher upthan he had come upon his other recent journeys in this, tohim, little known country. Three hours before dawn his keennostrils apprised him that somewhere in the vicinity he wouldfind what he wanted, and so he climbed into a tall tree andsettled himself for a few hours' sleep.