He buried himself among the rocks; he followed a ledge with Muskwa slinking close at his heels; he climbed over a huge scarp of rock, and twisted among boulders half as big as houses.

But not once did he go where Muskwa could not easily follow.

Once, when he drew himself from a ledge to a projecting seam of sandstone higher up, and found that Muskwa could not climb it, he came down and went another way.
The baying of the dogs was now deep down in the basin.

Then it began to rise swiftly, as if on wings, and Thor knew that the pack was coming up the green slide.

He stopped again, and this time the wind brought their scent to him full and strong.
It was a scent that tightened every muscle in his great body and set strange fires burning in him like raging furnaces.