Howl’s moving castle inspirer books?

Hello everyone,

I just rewatched Howl’s Moving Castle and started to wonder if there are books inspired by the movie and the work of Diana Wynne Jones out there.

I’ve searched on Goodreads and I found the one by Olivia Atwater and another one (there is an Emily in the title but i can’t recall it, sorry!).

I’d like to read something more adult? Where the romance is strong and not just kisses if you know what i mean.

Do you have any recs? Thank you xx

by precipitiam0