“Place your bets, ladies and gentlemen, before the ball enters Zone Green,” the croupiers intoned. “The screens go up, no bets can be placed while the ball is in the Green.”

If the wheels had not been rigged, Cloud could have computed with ease the exact number upon which each ball would come to rest. In such case the Patrol forces would not, of course, have given Vesta the Vegian complete or accurate information. With her temperament and her bank-roll, she would have put the place out of business in an hour; and such a single-handed killing was not at all what the Patrol desired.

But the wheels, of course, were rigged. Cloud was being informed, however, of every pertinent fact. He knew the exact point at which the ball crossed the green borderline. He knew its exact velocity. He knew precisely the strengths of the magnetic fields and the permeabilities, reluctances, and so on, of all the materials involved. He knew just about how much braking force could be applied without tipping off the players and transforming them instantly into a blood-thirsty mob. And finally, he was backed by Lensmen who could at need interfere with the physical processes of the croupiers without any knowledge on the part of the victims.

Hence Cloud did well enough—and when a house is paying thirty-five to one on odds that have been cut down to eight or ten to one, it is very, very bad for the house.

Vesta started playing conservatively enough. She went from wheel to wheel, tail high in air and purring happily to herself, slapping down ten-credit notes until she won.

“This is the wheel I like!” she exclaimed, and went to twenties. Still unperturbed, still gay, she watched nine of them move away under the croupier’s rake. Then she won again.

Then fifties. Then hundreds. She wasn’t gay now, nor purring. She wasn’t exactly tense, yet, but she was warming up. As the tenth C-note disappeared, a Chickladorian beside her said:

“Why don’t you play the colors, miss? Or combinations? You don’t lose so much that way.”

“No, and you don’t win so much, either. When I’m gambling I gamble, brother . . . and wait just a minute . . .” the croupier paid her three M’s and an L. . . . “See what I mean?”

The crowd was going not-so-slowly mad. Assistant Manager Althagar did what he could. He ordered all rigging and gimmicks off, and the house still lost. On again, off again; and losses still skyrocketed. Then, hurrying over to the door of a private room, he knocked lightly, opened the door, and beckoned to Thlasoval.