The clouds grew darker, and there were a few scattering flakes of snow.
"I guess we're going to be in for it," said Bert. "If the wind would only blow harder we could go faster."
As if in answer to his wish the wind started up and the boat fairly flew over the ice. Then the storm suddenly broke and the snow was so thick that they could not see where they were going.
"What shall we do?" cried Dorothy, who was not used to being out in such a blow.
"Keep on—that's the only thing to do," answered Bert. "We will go as far as we can in the boat and then we'll walk."
"Walk to Snow Lodge!" cried Nan. "We could never do it!"
"Oh, it isn't so far now," said her brother.
The snow fell so fast that soon the ice-boat went slower and slower. Finally it stopped altogether, the runners clogged with snow. The wind blowing on the sail nearly turned the craft over.
"Cast off those ropes!" cried Bert to
