"But how will they ever get back?"

"I don't know," her companion answered, slowly. "If only this terrible fog would go away, so that we could see something, perhaps we might help them. I don't know what we can do now but to keep up our smoke."

"I wonder if we are afloat?" Katy asked, trying to steady her voice, for she saw how useless it was to weep when so much might be required of her any minute. "Ah, Rex, good dog, what shall we do now? Can't you find your master?"


Chapter XVIII.

RESCUING THE WANDERERS.

Rex wagged his tail mournfully, and looked at the strange scene, whining as if he understood it all, but was at his wits' end how to act.

"Afloat?" Tug repeated, after a minute. "There are cracks on each side of us, and a narrow one part way behind, between us and that high hummock over there to the southward, which, in my opinion, hides the low, flat land, for I think it is only four or five miles to the shore. But it might as well have been four or five hundred while that snow lasted. Let's watch, and see if the crack gets wider."

"Do you feel quite sure, Tug, that Aleck and Jim are on one of those big cakes of ice?" The tone of Katy's voice was very anxious.