I encountered another large and living body rushing in my direction, and the encounter was so violent that I fell back on the ice and sleet, half stunned.

In a few moments I recovered and sat up.

Dr. Ambrose was sitting on a stone and looking at me, his eyes full of reproach. He pointed to a purple contusion on his forehead.

"You did that," he said.

I felt of a growing lump over my left ear.

"You did that," I said.

He surveyed me, still with reproach.

"I took you for Colonel Hetherill," he said.

I put some reproach into my own gaze.