When he arrived he found the entire tribe gathered jabbering about the dead body of his slain mother.

Tarzan’s grief and anger were unbounded. He roared out his hideous challenge time and again. He beat upon his great chest with his clenched fists, and then he fell upon the body of Kala and sobbed out the pitiful sorrowing of his lonely heart.

To lose the only creature in all his world who ever had manifested love and affection for him was the greatest tragedy he had ever known.

What though Kala was a fierce and hideous ape! To Tarzan she had been kind, she had been beautiful.

Upon her he had lavished, unknown to himself, all the reverence and respect and love that a normal English boy feels for his own mother. He had never known another, and so to Kala was given, though mutely, all that would have belonged to the fair and lovely Lady Alice had she lived.

After the first outburst of grief Tarzan controlled himself, and questioning the members of the tribe who had witnessed the killing of Kala he learned all that their meager vocabulary could convey.

It was enough, however, for his needs. It told him of a strange, hairless, black ape with feathers growing upon its head, who launched death from a slender branch, and then ran, with the fleetness of Bara, the deer, toward the rising sun.

Tarzan waited no longer, but leaping into the branches of the trees sped rapidly through the forest. He knew the windings of the elephant trail along which Kala’s murderer had flown, and so he cut straight through the jungle to intercept the black warrior who was evidently following the tortuous detours of the trail.

At his side was the hunting knife of his unknown sire, and across his shoulders the coils of his own long rope. In an hour he struck the trail again, and coming to earth examined the soil minutely.

In the soft mud on the bank of a tiny rivulet he found footprints such as he alone in all the jungle had ever made, but much larger than his. His heart beat fast. Could it be that he was trailing a MAN—one of his own race?