Vampire Winter by Travis Walters

Pearl Place isn't any ordinary orphanage. It has a habit of attracting many Strange and Unusual creatures. Sam, an eleven-year-old orphan who lives within its walls, has always been ready to handle whatever supernatural situation his new home throws at him. But now the house's newest addition, Bart, proves to be not just another bully, but an unholy creature of the night with a taste for blood.

Now Sam, along with Nate, a computer whiz, and Emily, an expert in all things paranormal, must try to expose their new housemate and figure out what he’s doing at Pearl Place before they are all recruited to join the army of the undead, and bring forth a vampire apocalypse!

Fans of the creature-feature fun of the Goosebumps series are sure to love this story!