Scourge of the Vampire Velociraptors - Matt Schorr - Bog

The sensational sequel to Attack of the Zombiesaurus Rex!David, Jake, and Carla thought their troubles were over when they banished the Zombiesaurus Rex to its homeworld. They were wrong. A new breed of monsters has entered the neighborhood, and they're hungry. Stopping them won't be easy. Sending them back where they come from may prove impossible. To do it, the three friends will need all the help they can get--including some assistance from the man who designed the technology that brought the monsters here in the first place!