what trick does huck play on jim?

Chapter please? Huck plays a few tricks on Jim!

15-18

As they approaching that section of the river, a dense fog arrives and blankets everything in a murky white. They land on the shore, but before Huck is able to tie up the raft, the raft pulls loose and starts floating downstream with Jim aboard. Huck jumps into the canoe and follows it, but soon loses sight of it in the fog. He and Jim spend several hours tracking each other by calling out, but a large island finally separates them and Huck is left all alone.

The next morning, Huck awakens and luckily manages to catch up with the raft. He finds Jim asleep and wakes him up. Jim is glad to see him, but Huck tries to play a trick on Jim by telling him that the events of the night before were just a dream. After some convincing, Jim starts to interpret the "dream." After some time, Huck finally points out the leaves and debris left from the night before, at which point Jim gets mad at Huck for playing such a mean trick on him. Huck feels terrible about what he did and apologizes to Jim.