"The Vagabond."

Unbelievable, impossible. Yet he could not be mistaken. The Vagabond was coming home again!

By this time the Mercutians had seen it too. It meant suicide, that rushing projectile from outer space, but it would take along with it in the crash of its flight a goodly number of the Mercutian fliers. The Mercutians were no cowards, but death stared them openly in the face.

Instantly, all was in confusion. Forgotten the rebellious Earthmen below, forgotten everything but escape from the down-rushing thunderbolt.

Hilary, staring upward, could visualize the fliers working desperately at their controls. The clustered ships vibrated like a school of frightened fish poised for instant flight. Then they were in motion; scattering, wabbling in the terror of their retreat.

The Vagabond hurtled down among them like a hawk among pigeons. Its surface glowed with the speed of its flight. To Hilary's fascinated gaze it seemed as if there would be a terrific smash. But the Vagabond came to a screaming, braking halt directly in the center of the milling, scattering Mercutians.

Almost simultaneously the air resounded with staccato bursts. Ratatat-tat-a-tat.

"Good little Wat," Grim danced insanely. "He's cutting loose the submachine gun."

Hilary woke from his amazement with a start.

"Shoot, and shoot to kill," he shouted above the turmoil. "Don't let a single one get away."