The Complete Sanctuary Series - Amy Laurens

Sanctuary, home of the fairies, is in danger. The shadows are coming, and Edge, under witness protection and currently friendless, may be the only one who can stop them. 

Contains all three volumes of the Sanctuary series:

Where Shadows Rise: The fairies have a secret they're just dying to keep. 

Through Roads Between: Sanctuary is a place of safety--or so the fairies say... 

When Worlds Collide: This is what the fairies never wanted you to know.