In vain they looked about for some trace of the Svlachkys.
"Let us go on an exploring tour," suggested the captain, seeing how badly Bob felt.
They started off first for the far end of the cavern.
They had gone scarcely a dozen rods when the captain called a halt.
"Someone is coming!" he whispered.
A crunching of snow and ice was now plainly to be heard.
The party ran for shelter behind a series of ice humps and waited.
Suddenly a man clad in furs dashed by them, running at top speed.
"Father!"
At that strange cry the man stopped as though shot.