Everything that was heavy had to be left behind, for they knew that even unburdened they might have difficulty in getting the frost film on the snow to bear their weight.

It was a bright, starlight night when, the snow tunnel having been enlarged by Roy, regardless of flooding the shed, the whole party crept out and stood on the wide, snowy expanse.

Tumbu was first, and with joyful yaps began to career about in circles curved like a comma, biting and snapping at the snow.
Down came last, and _meaowed_ piteously, lifting up first one cold foot, then another, and shaking it in disgust.

Finally an idea seemed to come into her head; she made a bound toward Tumbu, and the next moment was on his back, clawing onto his fluffy black fur; whereat everybody laughed.
So, with many a prayer for guidance, the little party set off, Old Faithful leading the way.

At first they managed pretty well, though the men and women, being heavy, sank over the ankles at each step.