t had been above him. His first inkling of danger was the sharp pain of talons in his back, and the stunning blow of a beak across his head.

Dazed, he let his back go Shapeless. His body-substance flowed from the grasp of the talons. He dropped a dozen feet and resumed Sparrow-shape, hearing an astonished squawk from the attacker.

He banked, and looked up. The Hawk was eyeing him.

Talons spread again. The sharp beak gaped. The Hawk swooped.

Pid had to fight as a Bird, naturally. He was four hundred feet above the ground.

So he became an impossibly deadly Bird.

He grew to twice the size of the Hawk. He grew a foot-long beak with a double razor's edge. He grew talons like six inch scimitars. His eyes gleamed a red challenge.

The Hawk broke flight, squalling in alarm. Frantically, tail down and widespread, it thundered its wings and came to a dead stop six feet from Pid.

Looking thoughtfully at Pid, it allowed itself to plummet. It fell a hundred feet, spread its wings, stretched its neck and flew off so hastily that its wings became blurs.