Supernatural: Bone Key
Supernatural: Bone Key by Keith R.A. DeCandido is the third novel tie-in for Supernatural. It takes place after the third season episode "A Very Supernatural Christmas." It was published August 26, 2008 by HarperEntertainment and is 304 pages in length.
Sam and Dean are headed for Key West, Florida, home to Hemingway, hurricanes, and a whole lot of demons. The tropical town has so many ghouls on the loose that one of its main money makers has long been a series of ghost tours. But the tours are no more, not since one of the guides was found dead of an apparent heart attack... his face frozen in mid-scream. No one knows what horrors he saw, but the Winchester brothers are about to find out.
Soon they'll be face-to-face with the ghosts of the island's most infamous residents, demons with a hidden agenda, and a mysterious ancient power looking for revenge. It's up to Sam and Dean to save the citizens of Key West... before the beautiful island is reduced to nothing more than a pile of bones.