He can't actually tell her where the stolen money was put because: He had to stash it in her father's coffin.
Tis story is actually related to "The Adventures of Huckleberry Finn".
"The Adventures of Huckleberry Finn" refers to a novel that was actually written by Mark Twain, an American author. The story talks about Huck, a thirteen or fourteen years boy who was brought up by his father. He had difficulty fitting into the society.
We can see that Huck couldn't tell Mary Jane were the money was put because he actually kept it in her father's coffin.
Learn more about "The Adventures of Huckleberry Finn" on https://brainly.com/question/14229562