Edgar, an eleven-year-old orphan, finds a book that reveals significant secrets about Atherton, the strictly divided world on which he lives, even as geological changes threaten to shift the power structure that allows an elite few to live off the labor of others.

The Crossbones have a long history of destroying people who get in their way and now Ryan and Sarah find themselves in their crosshairs.

Edgar, an eleven-year-old orphan, finds a book that reveals significant secrets about Atherton, the strictly divided world on which he lives, even as geological changes threaten to shift the power structure that allows an elite few to live off the labor of others.

Ryan and Sarah have solved one mystery...only to find themselves trapped by another. At first it seemed that the Crossbones was a secret society limited to Skeleton Creek. But now new facts are being unearthed--with new dangers attached. As they dig deeper into the hidden history of the Crossbones, Ryan records everything in his notebook--and Sarah captures everything she sees on video. As the spookiness spreads, this new mystery is going to take...