There was no time for reaction within Underwood at his merciless first slaying. The complex machinery of the disruptor sputtered to a halt amid the clatter of relays.

Underwood moved into the next sector of the ship where the powerful Atom Stream projectors awaited their prey. He carefully extended the powers of the dor-abasa. It was almost as if he could feel his way along the nerve channels of the operator's mind into the depths of the brain. There he sent forth a sudden, wild command.

The operator unquestioningly spun the wheels that shifted the radiators. They came to rest upon the nearest ship of the fleet.

"Fire!" Underwood commanded.

The operator's fingers closed upon the switches. The Atom Stream lashed into space, tore open the vitals of the sister ship and flung the fragments out into space. Some crashed into other ships, battering them, throwing them off course.

For a moment after the catastrophe, the commanders of the fleet were stunned to inactivity, while confusion swept the ranks. The hysterical cries of the operator who had pulled the switches filled the room.

"I didn't do it!" he screamed. "Something made me—"

Some of the ships were still attacking the Lavoisier. Underwood didn't know how long they could hold out. He sped to the nearest ship where there was milder but no less disrupting confusion as news of the unexplained disaster filtered down to the lowest astro-man.

Underwood sought out the fire control chamber. He fingered his way along the nerve channels of the operator and swung the projectors around. This time the target was the mighty flagship.

The operator gasped with horror as the titanic hull came into view in his sights, yet with unerring accuracy his hands moved the radiators to center exactly on the target.