I just finished reading an intriguing novella that inspired an idea for a future theme: co-written.
I'm often intrigued by books written by two or more authors. As a writer I'm curious to know how they did it (I'm not a team player), and as a reader I'm curious see whether one voice or another is more apparent, and whether, together, the authors have made something unique in the combination.
So I'm just adding this here in the hope that if I forget, next time we're looking for themes, someone else might remember.