Okay kiddo, so the Book of Abraham is a book that some people believe was written by a man named Abraham a long time ago. But some people don't believe it was really written by him. It's kind of like a mystery!
The book talks about Abraham's life and his teachings about God. But it's not like a regular book you might read at school. It's a religious book that people who believe in a certain faith called Mormonism follow.
Now, here's where things get even more tricky. Some people say that the Book of Abraham was translated by a man named Joseph Smith who founded the Mormon church. But others say that he just made it all up and that the book has nothing to do with Abraham at all.
So, to sum it up, the Book of Abraham is a book that some people believe was written by Abraham a long time ago, but others think it's not really his work. And some people follow it because they believe it was translated by Joseph Smith and is an important religious book in Mormonism.