Supernatural Usual Sacrifices Mmpb

"A brand-new Supernatural novel that reveals a previously unseen adventure for the Winchester brothers, from the hit CW series! When Sam and Dean head to Kentucky to investigate a rash of unexplained disappearances in a town close to Mammoth Cave, they hear a local folk tale about the mysterious cave, and the sacrifices it requires to ensure the town's prosperity. Could the disappearances be linked to the ritual, or is an even more sinister brand of evil at work?"