Goodnight Kiss 2 (Fear Street Super Chiller) by R.L. Stine - Vintage Paperback

Vampires are stalking the small resort town of Sandy Hollow. Billy knows it; his girlfriend was one of the victims last summer. Now Billy is back - and he wants revenge.

His friends don't believe him. But nobody can explain the bodies found on the beach - with two puncture holes in the neck. Or the swarm of bats that appear each night.

The undead are here, and Billy's going to beat them.

Or join them.