The cattleman was an expert driver. He wound in and out among the other cars speeding over the prairie, struck the road before the great majority of the automobiles had reached there, and was in town with the vanguard. After dinner the rough rider asked the clerk at her hotel if there was any mail for Miss Rose McLean. Three letters were handed him. He put them in his pocket and set out for the hospital. He found Miss Rose reclining in a hospital chair, in a frame of mind highly indignant. "That doctor talks as though he's going to keep me here a week. Well, he's got another guess coming. I'll not stay," she exploded to her visitor. "Now, looky here, you better do as the doc says. He knows best. What's a week in your young life?" Kirby suggested. "A week's a week, and I don't intend to stay. Why did you limp when you came in? Get hurt?" "Not really hurt. Jammed my leg against a fence. I drew Wild Fire." "Did you win the championship?" the girl asked eagerly. "No. Finals to-morrow. Sanborn an' me. How's the arm? Bone broken?" "Yes. Oh, it aches some. Be all right soon." He drew her letters from his pocket. "Stopped to get your mail at the hotel. Thought you'd like to see it." Wild Rose looked the envelopes over and tore one open. "From my little sister Esther," she explained. "Mind if I read it? I'm some worried about her. She's been writing kinda funny lately." As she read, the color ebbed from her face. When she had finished reading the letter Kirby spoke gently. "Bad news, pardner?" She nodded, choking. Her eyes, frank and direct, met those of her friend without evasion. It was a heritage of her life in the open that in her relations with men she showed a boylike unconcern of sex. "Esther's in trouble. She--she--" Rose caught her breath in a stress of emotion. "If there's anything I can do--" The girl flung aside the rug that covered her and rose from the chair. She began to pace up and down the room. Presently her thoughts overflowed in words. "She doesn't say what it is, but--I know her. She's crazy with fear--or heartache--or something." Wild Rose was always quick-tempered, a passionate defender of children and all weak creatures. Now Lane knew that the hot blood was rushing stormily to her heart. Her little sister was in danger, the only near relative she had. She would fight for her as a cougar would for its young. "By God, if it's a man--if he's done her wrong--I'll shoot him down like a gray wolf. I'll show him how safe it is to--to--" She broke down again, clamping tight her small strong teeth to bite back a sob. He spoke very gently. "Does she say--?" His sentence hung suspended in air, but the young woman understood its significance. "No. The letter's just a--a wail of despair. She--talks of suicide. Kirby, I've got to get to Denver on the next train. Find out when it leaves. And I'll send a telegram to her to-night telling her I'll fix it. I will too."