Dream a Little Dream by Kerstin Gier
A girl with a hatchet. Doors with lizard head knobs. Talking stone statues. Yes, Liv's dreams have been pretty weird lately. Especially the one where she's in a graveyard at night, watching four boys conduct dark magic rituals. The strangest part is that Liv recognises the boys in the dream. They're classmates from her new school in London. But what's really scaring Liv is that these dream boys seem to know things about her in the real world, things they couldn't possibly know - unless they actually are in her dreams? Luckily, Liv never could resist a mystery, and all four of those boys are pretty cute.