Reasons for this are as follows:
1. Completely new genre - no vampires!
2. Completely new characters to learn and install in my head.
3. I'm writing alternate chapters / alternate POV, so each time I start a new chapter I have to switch mindset.
4. I'm also switching from 1st person to 3rd person, so Bea is written from 1st person and Will is written from 3rd!
I think it's working out! It was a bit of a challenge but I think it is going to work!
I've also added another book to my Goodreads Challenge. I finished The Hitchhikers Guide to the Galaxy the night before last. It was pretty good. I enjoyed it. It was certainly different and rather weird, in a good way. I'm not sure it's worth all the 5 stars it gets, but it was worth reading and I'll probably read the next one at some point.