"Not this evening, Mr. Gage!" he said. "I am onto your little game, and it won't work any more with this crowd!"

The boys sprang to their feet.

"What do you mean?" asked Gage, hoarsely, his face very pale.

"I mean that you are a sneak and a cheat!" said Frank, deliberately. "I mean that you are too mean and contemptible for any honest fellow in this academy to ever have anything to do with! I mean that you have deliberately robbed your companions by means of crooked appliances made for dishonest gamblers! That is exactly what I mean, Mr. Gage."

Leslie gasped, and managed to say:

"Be careful! You will have to prove every word, or——"

"I will prove it! I have been watching you, and I have seen you repeatedly make the pass that restores cut cards to their original position. I have seen you hold back at least three of the top cards in dealing, and give them to Snell or take them yourself. Those cards will be found to be skillfully marked, and that pack is short. Boys, count those cards!"

The cards were counted, and the pack proved to be four cards short.

"Here is one of the gambler's appliances of which I spoke," said Frank, thrusting his hand under Leslie's side of the table and wrenching away something. "It is a table hold-out, and it contains the four missing cards. This is the kind of a fellow you are playing cards with, gentlemen."

The faces of the boys were black with anger, Wat Snell being excepted. Seeing his opportunity, Snell quickly slipped away, and before he could be stopped, had bolted from the boathouse.