How does Huck decide he could manage to escape? (CH 1-6)

Searching for a way to escape, Huck discovers part of a saw that is missing its handle and starts to saw off a log in the rear corner of the cabin, but is forced to stop when Pap returns. Huck hopes to escape after Pap falls asleep, but Pap has a fitful night, and Huck is afraid he might wake up and catch him trying to get out of the cabin.

In Chapter Seven, 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. Next, Huck fetches a wooden raft from the river with timber that is worth about ten dollars. Pap locks Huck into the cabin and takes the raft to town in order to sell it.

Taking advantage of Pap's absence, Huck quickly finishes his sawing and climbs out of the cabin, taking everything worth any money to his canoe. He axes down the front door and goes hunting for game. Huck shoots a wild pig, butchers it inside the cabin, and spreads the blood on his shirt and the floor. He also carefully lays some of his hairs on the now bloody ax to make it appear as if he has been killed. Huck cuts open a sack of flour and marks a trail indicating that the killer left via a lake that does not connect to the river. Thus, he prevents anyone from searching along the river for anything more than his dead body.

As Huck is finishing, a man appears nearby in a skiff. Huck recognizes that it is Pap returning early and that he is sober. Immediately, Huck jumps into the canoe and pushes off. He floats downstream until he reaches Jackson's Island, a deserted stretch of land in the middle of the river.