Book of Death Series by David Longhorn

Haunted by past battles with supernatural evil, paranormal investigator Professor Marcus Mortlake steps into action when a friend seeks help about a village priest's eerie behavior.

His investigation reveals a dark presence awakening in the foggy hills of Norfolk, causing disturbances among local animals and villagers.

As sinister voices chant and a blight spoils crops, Mortlake realizes he must confront an ancient evil that threatens innocent lives to feed its power.