and half a cupful of caribou grease, added a tablespoonful of baking powder
and a three-finger pinch of salt, and began to mix. Inside of five minutes
he had the bannock loaves in the big tin reflector, and half an hour later
the sheep steaks were fried, the potatoes done, and the bannock baked to a
golden brown.

The sun was just showing its face in the east when they trailed out of
camp. They rode across the valley, but walked up the slope, the horses
following obediently in their footsteps.

It was not difficult to pick up Thor's trail. Where he had paused to snarl
back defiance at his enemies there was a big red spatter on the ground;
from this point to the summit they followed a crimson thread of blood.
Three times in descending into the other valley they found where Thor had
stopped, and each time they saw where a pool of blood had soaked into the
earth or run over the rock.

They passed through the timber and came to the creek, and here, in a strip
of firm black sand, Thor's footprints brought them to a pause. Bruce
stared. An exclamation of amazement came from Langdon, and without a word
having passed between them he drew out his pocket-tape and knelt beside one
of the tracks.

"Fifteen and a quarter inches!" he gasped.

"Measure another," said Bruce.

"Fifteen and--a half!"

Bruce looked up the gorge.