The Monster Upstairs. The Bloodseeker Series, #2

A mysterious, blinding white light, followed by a vision, haunts Mandy until something unthinkable happens. She comes home from school to find her mother badly injured. On instinct, through her tears, forces from within surge through her fingertips into her mother, giving her a second wind. She urges Mandy to take a note and leave, but she can't -- not yet. Her hot, dark-haired, muscle-bound neighbor, Joel, finds her and drags her crying towards the door.
What awaits them on the other side sends them back into the house, where she learns Joel isn't who she thought. Her entire life gets turned upside down as her destiny sends her and Joel deep into the world of Bloodseekers and other supernatural creatures.