She must go on.

The bark, or yelp, had been a signal; but now there came to her ears the long howl.

She had heard it often in the great forests at home.

It was the call of the pack that there was to be a kill.

She might shoot half a dozen of them, and the living rend the dead, but the main pack would follow on and overtake her.
She swung on upward, catching a sapling here, a limb there, pulling herself over hard bits of going.