The investigators decide to leave London for a spell and investigate a lead in the English countryside. Jackson Elias looked into strange deaths on the moors. The authorities believe the deaths to be simple animal killings, but no mere animal could inflict this kind of carnage. The Vane family, a minor aristocratic clan that lives in a castle, may somehow be connected to the case. You know what they say about exploring the moors at night, but what investigator can stay away?