Jim doesn't want to talk about it.

In chapter 10, Jim wasn't in the mood to tell Huck about the dead body that they found floating down the river from yesterday. The next morning Jim already had predicted bad luck the day before on account of Huck touching a snakeskin with his hand. But when Jim crawls into the bed he gets bitten in the ankle by the snake's mate after Huck put the snack in his bed. Jim had a rough time during this chapter and I feel like he is going to threw lot more with Huck.