slowly but surely the Dora swung into her former position and became jammed tighter than before.
"Another failure," sighed Dick.
"I'm about out of breath," said Sam, with a gasp.
"Let me try it," said Fred, and he, Hans, and Songbird set to work, with the others helping. But it was of no avail, the houseboat could not be moved sufficiently to clear herself of the sunken tree trunk with its immense limbs.
"Well, there is one thing to be thankful for," said Dick, as they rested from their labors. "That trunk might have gone through our sides or bottom and sunk us."
During the next hour two steamboats passed them, but not near enough to be asked for help. They cleaned their lanterns and hung them high up, so as to avoid a collision.
"It's queer that no craft came out to learn why the rockets were sent up," said Dick.
"Perhaps they thought some celebration was going on," answered Harold Bird.
"It's nearly two o'clock and I am dead tired," announced Tom. "Any objections to my going to sleep?"
"Not if you can get to sleep," answered his older brother.
"Half of us might as well turn in, while the other half remain on guard," said Sam, and so
