Hit me with your best H (title)!

I’m doing a reading challenge for which I have to read 26 books, each with a title starting with a different letter of the alphabet (no re-reads). For some reason, I haven’t been able to find anything exciting that has a title starting with an H. As long as it’s entertaining, I don’t care about genre although nonfiction would be a bonus. I’ve previously read The Hitchhikers Guide, The House In The Cerulean Sea, The Handmaid’s Tale, The Hobbit, Harry Potter et al, Huckleberry Finn, The Hidden Life of Trees etc., so those are out. Can’t wait to see what you come up with!

UPDATE: So many excellent suggestions! There are quite a few that I have read so I know they’re good and I plan to revisit some of them. Thanks for reminders! There are quite a few that are new to me and I’m sure I can mark H off my list soon. Thank you all so much!!!