How does Huck escape?

Pap and Huck go out into the woods to hunt for game. While there, Huck sees an abandoned canoe on the river and jumps in to get it. When he realizes that Pap did not see him snare the canoe, he hides it in a little stream for future use and returns to Pap. When Pap is gone, Huck axes down the front door of the cabin and escapes.