A thrill of fear ran over the Very Young Man as he recognized the face of Targo. And then his heart seemed to stop beating. For as he stared, fascinated, into the man's mocking eyes, he saw that slowly, steadily he was growing larger. Mechanically the Very Young Man's hand went to his armpit, his fingers fumbling at the pouch strapped underneath. The vial of chemicals was not there!

For an instant more the Very Young Man continued staring. Then, with an effort, he turned his eyes away from the gaze that seemed to hypnotize him. Beside him the Chemist lay sleeping. He looked back at Targo, and saw him larger—almost as large now as he was himself.

Like a cloak discarded, the Very Young Man's bewilderment dropped from him. He recognized the danger, realized that in another moment this enemy would be irresistibly powerful—invincible. His mind was clear now, his nerves steady, his muscles tense. He knew the only thing he could do; he calculated the chances in a flash of thought.

Still staring at the triumphant face of Targo, the Very Young Man jumped to his feet and swiftly bent over the sleeping form of the Chemist. Reaching through the neck of his robe he took out the vial of chemicals, and before his friend was fairly awake had swallowed one of the pills.

As the Very Young Man sprang into action Targo turned and ran swiftly away, perhaps a hundred feet; then again he stopped and stood watching his intended victim with his sardonic smile.

The Very Young Man met the Chemist's startled eyes.

"Targo!" said the Very Young Man swiftly. "He's here; he stole the drug just now, while I was sleeping."

The Chemist opened his mouth to reply, but the Very Young Man bounded away. He could feel the drug beginning to work; the ground under his feet swayed unsteadily.

Swiftly he ran straight towards the figure of Targo, where he stood leaning against a tree. His enemy did not move to run away, but stood quietly awaiting him. The Very Young Man saw he was now nearly the same size that Targo was; if anything, the larger.

A fallen tree separated them; the Very Young Man cleared it with a bound. Still Targo stood motionless, awaiting his onslaught. Then abruptly he stooped to the ground, and a rock whistled through the air, narrowly missing the Very Young Man's head. Before Targo could recover from the throw the Very Young Man was upon him, and they went down together.