The Dreadful Tale of Prosper Redding A Fiendish Arrangement by Alexandra Bracken

Prosperity has always been a bit different from the rest of his family, but he had no idea when he turned thirteen he'd suddenly be possessed by a fiend.  After all, the original contract was years and years ago.  He hadn't even known about it.  His relatives did though.

Disney-Hyperion and Net Galley allowed me to read this book for review (thank you).  It will be published on September 9th.

When he and his twin sister are summoned to their grandmother's home for a family event, they have no idea how dangerous it is.  They are testing the two to find out which one the fiend is hiding in.  When they find out, they grab Prosperity and hold him down and cut his arm with a knife.  They would have cut more but an outsider grabs him and runs away with him.  He's thankful for being saved but he doesn't understand that there's danger there, too.

Family greed is not part of Prosperity's make up.  Alastor (the fiend) can't manipulate him like he did his ancestor.  He even finds himself helping him to do good and he finds that disgusting.

I enjoyed reading about Prosperity's night adventures while possessed.  Alastor likes eating pumpkins and spiders and other odd things as he wanders through the night.  When he finds a Hob, he takes him on as a servant.  However, things aren't at all like they seem.

Alastor's world has changed since he's been gone.  Another fiend has taken over his rightful throne.  He wants to get back desperately and take it back.  But his enemy there is the least one expected.

The ending is a cliff hanger.  The fiend and Prosperity will have to work as a team to solve the new problem.  And Prosperity is going to sign a contract to make him do so.  But then what will happen to Prosperity?

This is an exciting adventure with danger, disgusting things, and betrayers everywhere.  It's definitely not boring.