[CHAPTER XVIII]
LOST AGAIN

“Now what’s up?” cried Tom, as he made a rush after the dog. But he was too late. Towser was out in the snow.

“It’s that bear again,” George said.

“You’ve got bear on the brain,” commented Bert.

The boys looked out and listened, but they could neither see nor hear anything, and soon the dog came back. But, even as he reached the door, he turned and sent a challenging bark toward someone—or something.

“This sure is queer,” murmured Bert.

“And it’s queer what Jack said,” went on Tom. “About being spied upon. What do you mean, old man?”

“Just what I said,” was the answer. “Just before the dog gave the alarm, I had a feeling as though someone outside was keeping watch over this shack.”