The position of the boat, half buried under the shelving ice, was such that it was almost hidden from view.

“No wonder we missed it,” said Frank.

“Faix, I’d a misht it meself,” replied Barney, “only I had a telescope in me fisht, so I did.”

The Ranger was brought to a pause above the boat a few yards, they saw that it was empty.

It contained no oars.

At the bow was a painter with a frayed end.

Frank eyed the ice with a glass, and saw a mantle of snow on it.

Presently he gave utterance to an exclamation.

“By jingo! A trail!”

“What?” eagerly asked Dr. Vaneyke.