He was staring at it.
From the knife he looked at Philip.
"I keel ze man at God's Lake because he steal ze knife--an' call me lie.

I keel heem--lak that!"-- and he snatched up a stick and broke it into two pieces.
His weird laugh followed the words.

He went to the meat and began carving off chunks for the pack, and for a long time after that one would have thought that he was dumb.

Philip made greater effort than ever to rouse him into speech.

He laughed, and whistled, and once tried the experiment of singing a snatch of the Caribou Song which he knew that Bram must have heard many times before.