"Bostiff...."

On the rear terrace the legless giant stirred at the call. He moved on huge arms to the door and into the library....


In his tower suite, Keane paced back and forth with his hands clasped behind him. Beatrice Dale watched him with quiet, intelligent eyes. He was talking, not to her, but to himself; listing aloud the points uncovered since his arrival here.

"A few seconds after talking with Madame Sin, Weems was stricken. Also, the lady with the odd name was seen coming from the roulette room at about the time when a party entered and found the croupier and eight guests turned from people into statues. But she was nowhere around when Wilson died in the conference room."

He frowned. "The watches were taken from all the sufferers from this strange paralysis, save Weems. By whom? Madame Sin? Weems' watch is absolutely in good order, but it won't run. The ball on the roulette wheels stays on a slant instead of rolling down into a slot as it should when the wheel is motionless. But the wheel doesn't seem to be quite motionless. It apparently moved a fraction of an inch in the forty-five minutes or so that I was in the room."

"You're sure you didn't touch it, and set it moving?" said Beatrice. "Those wheels are delicately balanced."

"Not that delicately! I barely brushed it with my fingers as I examined the ivory ball. No, I didn't move it. But I'm sure it did move...."

There was a tap at the door. He went to it. Gest was in the corridor.

"Here's the master key," he said, extending a key to Keane. "I got it from the manager. But—you're sure it is necessary to enter Madame Sin's rooms?"