The Crowmaster (Invisible Fiends, Book 3)

After Kyle's ordeal at school, his mother packs him off to the safety of the countryside, where there will be no temptation to use his powers, and he can forget the bad things - like the fact that his dad is a monster determined to destroy the world.

But here's the thing about the countryside: it's full of nature, and nature sometimes has claws.

Followed by a spindly figure in the woods and attacked by crows, Kyle is about to discover that NOWHERE is safe from the invisible fiends