Nosferatu and the Crystal of Aradeth.

Nosferatu and Crystal of Aradeth is the second book in the vampire trilogy by Louis Pecsi. The book opens with Knock running from the law after having attempted to resurrect Orlok by using the blood of victims he murdered for Orlok. Knock takes refuge in the forest and finds himself face to face with supernatural forces.

The plot thickens as Van Helsing's son is trying to solve his father's murder and is seeing visions of the number 8.Van Helsing goes to his friend and doctor and finds him wearing the symbol of the 8.When questioned Dr Seward professes it to be his new religion.

As the plot continues, Several children in the town of Slaughter encounter a glowing angel, who leads them to a church with an 8 on top of it.The children enter and there are screams from within..

Fast forward Count Orlok is on display at a circus along with the Golem and Cesar.Nosferatu is being controlled via supernatural powers that he doesn't understand.Orlok does escape using his mind control and his allies aka rats.

At this point the story becomes one of discovery and a super natural mystery.This book harkens back to horror movies of the 1920s as well mixing in elements of science fiction.