His wife did not follow.

She tried to, but shrank back from the treacherous surface and cowered down.
The Swift One did not wait for me, nor did she pause till she had passed beyond Hair-Face a hundred yards and gained a much larger hummock.

By the time Lop-Ear and I had caught up with her, the Fire-Men appeared among the trees.

Hair-Face's wife, driven by them into panic terror, dashed after us.

But she ran blindly, without caution, and broke through the crust.