What do you make of the last chapter? Is this a happy ending for Huck and Jim?

I thought the last chapter was somewhat a happy ending for Huck and Jim. Tom lives through his gun wound, and tells Jim the news about Miss Watson passing away and him being free now. Jim became free from his father because he found out that he died in the beginning of their adventure. Toms adventure was unnecessary because he wanted to follow the books so he could have a fun adventure to save Jim, even though he already knew that he was free. Because of Tom they end up getting caught and have to reveal their story. If Tom wouldn’t of followed the books the boys would have been able to get away and continue with their adventure down the river. Now Huck has to live with Aunt Sally because she adopts him, meaning he is going back to a sivilized life.