"That is smooth," he said. "I'd 'a' sworn that was the black card."

"So it was—when you saw it," his companion explained. "But you were just like the sucker that played him. You couldn't help glancing at the jay getting out his money, and it was in that instant the trick was done. He's too quick for the eye, but that's how he does it."

Dave became interested. He saw two or three others lose fives and tens. Then his companion pinched his arm. "Watch that new guy," he whispered. "Watch him. He's wise."

A new player had approached. He stood near the table for some minutes, apparently looking on casually; then his left fist came down on one of the cards. "A hundred on this one," he said, and began thumbing out a roll with his other hand.

"You ain't playin'," said the dealer. "You ain't in on this."

"Ain't I? What do you say, fellows?" turning to the crowd. "Am I in or not?"

"Sure you're in," they exclaimed. "Sure you're in," repeated a big fellow, lounging forward. "If this guy ain't in we clean you out, see?"

"It's on me," said the dealer, with an ugly smile. "Well, if I must pay, I pay. Turn 'er up."

It was black. The dealer paid out a hundred dollars to the new player, who quickly disappeared in the crowd.

Dave had made his decision. It was plain his companion's tip was straight. There was just one way to beat this game, but it was simple enough when you knew how. He sidled close to the table, making great pretense of indifference, but watching the cards closely with his keen black eyes. The dealer showed his hand, made a few quick passes, and the black card flew out to the right. This was Dave's chance. He pounced on it with his left hand, while his other plunged into his pocket.