On page 478 of "Adventures of Huck Finn," Huck makes the decision to tell Mary Jane about the stolen money.
"I says to myself, I reckon a body that ups and tells the truth when he is in a tight place is taking considerable many resks, though I ain't..." This is a really long paragraph.
Through running away and keeping himself free from adult rule, Huck forms his own moral conscience. Huck is not a bad kid, in fact, he may be the complete opposite. In this scene, he puts himself in complete danger by ratting out the Duke and the King.
We talked earlier about people being scared of letting boys read this because it might inspire them to be bad, but Huck is not bad. Huck might lie quite a bit, but this is for his and Jim's own safety. Running away seems more and more appealing to me.
But if I go missing in the next few weeks, please come looking for me, because if I do run away, I'll let someone know. And if I disappear, it'll be because someone has taken me.