Oh, there’s a lot of science going on in this thread 
Most of it did actually go over my head, haha!
Also with the pheromone thing, I think it will be more clearly talked about in Book Two (I think, haven’t got my plan next to me right now). But to clarify:
The vampires have to touch Kate because it’s daytime, and their powers are weakened in daytime (except M, because they’re so special, lol). They don’t need to touch anyone at nighttime to use their pheromones because they’re at full strength then (such as in the patrol scene, when they don’t have to touch the MC).
Gonna be working a bit on Book Two plans again this afternoon. Excited to get back into it after the break! It’s pretty much finished, just needs tidying and finalising and I’m hoping to actually start writing for Book Two sometime in April! 