Joe Cooper was intent on his game; Schoolcraft and the Mexican trader were taking things easy at a table in a corner, and both had their knives at their belts. They did not give him more than a passing glance, although a frown crept across the Independence horse-dealer's evil face. Seating himself where he could watch all the doors, Tom tried to solve the riddle while he waited to scrutinize anyone entering the cabin. At last he gave up the attempt to unravel the mystery and turned his attention to the card game, and was surprised to see that it was being played with all the safeguards of an established gambling house. Having a friend in the game he watched the dealer and the case-keeper, but discovered nothing to repay him for his scrutiny. An hour later the game broke up and Joe Cooper, cashing in his moderate winnings, arose and joined Tom and suggested a turn about the deck before retiring. Tom caught a furtive exchange of fleeting and ironical glances between the case-keeper and the dealer, but thought little of it. He shrugged his shoulders and followed his new friend toward the door. Ephriam Schoolcraft, somewhat the worse for liquor, made a slighting remark as the two left the cabin, but it was so well disguised that it provided no real peg on which to hang a quarrel; and Tom kept on toward the deck, the horse-dealer's nasty laugh ringing in his ears. He could see where he was going to have trouble, but he hoped it would wait until Independence was reached, for always there were the makings of numerous quarrels on board under even the best of conditions, and he determined to overlook a great deal before starting one on his own account. It was his wish that nothing should mar the pleasure of the trip up the river for Patience Cooper. He and his companion stopped in the bow and looked at the merry camp on shore, both sensing an undertone of trouble. Give the vile, frontier liquor time to work in such men and anything might be the outcome. He put his lips close to his companion's ear: "Mr. Cooper, did you notice anyone hurry into the cabin just before I came in? Anyone who seemed excited and in a hurry?" Cooper considered a moment: "No," he replied. "I would have seen any such person. Something wrong?" "Schoolcraft, now; and that Mexican friend of his," prompted Tom. "Did they leave the cabin before you saw me come in?" "No; they both were where you saw them for an hour or two before you showed up. I'm dead certain of that because of the interest Schoolcraft seemed to be taking in me. I don't know why he should single me out for his attentions, for he don't look like a gambler. I never saw him before that little fracas you had with him on the levee. Something up?" "No," slowly answered Tom. "I was just wondering about something." "Nope; he was there all the time," the merchant assured him. "Seems to me I heard about some trouble you had in Santa Fe last year. Anything serious?"