Listing books in the Cluster series (2)
Series: Cluster (3/5)
Series: Cluster (4/5)
"Among the most dangerous of the denizens of the catacombs below our land is the Invisible Seeker. None have ever seen one of these horrific slayers, for they are—as their name implies—unseeable. Their presence is usually first detected when open wounds suddenly begin appearing on the body of a victim."