Sullivan Donald H Sullivan 
Walking Corpse Plus Do Not Disturb: Two Scary Tales 

This book contains two stories. In "The Walking Corpse" three boys explore the basement system of an old abandoned state prison. The find a coffin and are terrified to find a zombie inside. It comes to life before their eyes. In "Do Not Disturb" two brothers search for buried treasure which is rumored to be near an old cemetery. While digging they find what they think to be a treasure chest. It turns out to be a coffin holding a long dead vampire, which they have awakened. She immediately puts them under her spell.