And it was descending.

He screamed, and lifted his arms above his head. The pendulum ground to a halt, the mechanism groaning and screeching in protest. There was a second of silence, and then the blade fell to earth with the suddenness of an avenging sword. This time, the scream was cut off in his throat, and the giant weapon flattened him sickeningly against the edge of the precipice.

Vaguely, as in a dream, he heard the sound of speech, and running footsteps.

"My God! It broke! The pendulum broke!"

"Somebody get the doctor!"

"Look out for that Pit! It's a forty-foot drop!"

"Come on!"

A hand touched his shoulder, and a ring of anxious faces floated like pink balloons over his head.

"I think he's still alive!"

"What?"