Suddenly there came a loud smack as Uncle Joe's left hand smashed down on the cards in Stevens' hand, holding them against the table while his right hand flashed under the partly buttoned edge of his long frock coat. It hung there, struggling with something in the inside pocket. Stevens had jerked his own hand loose, relinquishing the cards, and with the sharp motion a small, compact percussion pistol slid out of his sleeve and into his grasp as his hand stopped. He was continuing the motion, swinging the weapon up and forward when Tom, leaning suddenly forward in his chair, sent his heavy skinning knife flashing through the air. The first trapper had thrown a pistol down on the gambler's partner, the second stopped Ephriam Schoolcraft's attempted draw against Tom, and the third plainsman was peering eagerly along the barrel of his pistol at a spot between the Mexican's eyes. Had it been a well rehearsed act things could not have happened quicker or smoother.

Not five other persons in the cabin had any intimation of what was coming until Tom's knife, flying butt first through the air, knocked the pistol from Stevens' hand. The weapon struck the floor and exploded, the bullet passing through a cabin window. As the knife left his hand the thrower had leaped after it and he grabbed the desperate gambler in a grip against which it was useless to struggle. Uncle Joe, loosening his hold on the pocket pistol tangled in the lining of his coat, leaped around the table and quickly passed his hands over the clothing of the prisoner.

"What's th' trouble here?" demanded the quick, authoritative voice of the captain as he ran in from the deck. "Who fired that shot, an' why?"

He soon was made familiar with the whole affair and stepped to the table, picked up the cards and spread them for everyone to see. Asking a few questions of disinterested eye-witnesses, he looked about the cabin and spoke.

"I've nothing to say about gambling on this boat as long as gentlemen play," he said sharply. "When the play is crooked, I take a hand. I can't overlook this." He motioned to the group of boat hands crowding about the door and they took hold of Stevens and his partner. "Take these men and get their effects, and then put them ashore in the yawl. I'll have provisions put aboard while you're gone. Stevens, due south not many miles is the St. Louis-Independence wagon road. It is heavily traveled this time of the year. You can't miss it. Besides that there are numerous cabins scattered about the bottoms, and not far upstream is a settlement. Take 'em away." Glancing over the cabin again and letting his eyes rest for a moment on Ephriam Schoolcraft, he wheeled and started for the door, but paused as he reached it. "If there's any further trouble I'll be on the hurricane deck, for'rd. We're going to run all night if we can. I don't want any more disturbance on this packet."

As the captain left, Uncle Joe thanked Tom and the trappers and joined them at their table, providing the refreshment most liked by the plainsmen, and the reminiscences became so interesting that the little group scarcely noticed Tom arise and leave it. He was too restless to stay indoors and soon found a place to his liking on the deck below, near the bow, where he paced to and fro in the darkness, wrestling with a tumult of hopes and fears. Reaching one end of his beat, he wheeled and started back again, and as he passed the cabin door he suddenly stopped and peered at the figure framed in the opening, and tore off his hat, too surprised to speak.

"Mr. Boyd?" came a soft, inquiring, and anxious voice.

"Yes, Miss Cooper; but I thought you were fast asleep long ago!"

"I was," she replied; "but something that sounded like a shot awakened me, and thinking that it seemed to come from the card tables, I became fearful and dressed as hurriedly as I could in the dark. Is—is Uncle Joe—all right?"

"In good health, good company, and in the best of spirits," replied Tom, smiling at how the last word might be interpreted. "I left him only a moment ago, swapping tales with some trappers."