"But I had to. It's my last chance. And I know there's something wrong. Kedsty is getting me out of the way—because I was with him when he met the girl over in the poplar bush. I'm detailed on special duty up at Fort Simpson, two thousand miles by water if it's a foot! It means six months or a year. We leave in the motor boat at dawn to overtake Rossand and his outfit, so I had to take this chance of seeing you. I hesitated until I knew that some one was awake in your room."

"I'm glad you came," said Kent warmly. "And—good God, how I would like to go with you, Bucky! If it wasn't for this thing in my chest, ballooning up for an explosion—"

"I wouldn't be going," interrupted O'Connor in a low voice. "If you were on your feet, Kent, there are a number of things that wouldn't be happening. Something mighty queer has come over Kedsty since this morning. He isn't the Kedsty you knew yesterday or for the last ten years. He's nervous, and I miss my guess if he isn't constantly on the watch for some one. And he's afraid of me. I know it. He's afraid of me because I saw him go to pieces when he met that girl. Fort Simpson is simply a frame-up to get me away for a time. He tried to smooth the edge off the thing by promising me an inspectorship within the year. That was this afternoon, just before the storm. Since then—"

O'Connor turned and faced the moonlight for a moment.

"Since then I've been on a still-hunt for the girl and Sandy McTrigger," he added. "And they've disappeared, Kent. I guess McTrigger just melted away into the woods. But it's the girl that puzzles me. I've questioned every scow cheman at the Landing. I've investigated every place where she might have got food or lodging, and I bribed Mooie, the old trailer, to search the near-by timber. The unbelievable part of it isn't her disappearance. It's the fact that not a soul in Athabasca Landing has seen her! Sounds incredible, doesn't it? And then, Kent, the big hunch came to me. Remember how we've always played up to the big hunch? And this one struck me strong. I think I know where the girl is."

Kent, forgetful of his own impending doom, was deeply interested in the thrill of O'Connor's mystery. He had begun to visualize the situation. More than once they had worked out enigmas of this kind together, and the staff-sergeant saw the old, eager glow in his eyes.