Sanctum - David Wood

A quiet English village harbors a dark secret.

Trying to escape his past, veteran Jake Crowley takes a teaching position in the village of Market Scarston. But his slow rehabilitation is interrupted when a group of students are apparently attacked by Black Shuck, the legendary demon dog, and Crowley attracts the attention of a secret society dating back to the days of the Roman Empire.

See how it all began for Jake Crowley and Rose Black in this prequel novella, SANCTUM!