A poem to rhyme with "wolf"

I step and sink in snow up to my calf.
I plunge through crusted drifts. I clear a gulf
that cleaves a sheet of ice, a broken shelf.
It shrieks but bears my weight. I ease myself
along the groaning route until upon a half
scoured lip of rime, I am engulfed.
A sudden slide, the heavy woof
of snow collapse. I think of how to welcome death.
"The snow, it could not help itself."
But who will speak on my behalf?

I listen. Then I hear the wolf.

Poem prompt