When Amy and Dan Cahill trace the footsteps of a formidable military leader from the Cahill bloodline, they uncover a devastating secret about the family that changes everything.

Olivia Prior has grown up in Merilance School for girls, and all she has of her past is her mother's journal--which seems to unravel into madness. Then, a letter invites Olivia to come home--to Gallant. Yet when Olivia arrives, no one is expecting her. But Olivia is not about to leave the first place that feels like home, it doesn't matter if her cousin Matthew is hostile or if she sees half-formed ghouls haunting the hallways. Olivia knows that Gallant...

"Amy and Dan hit the high seas as they follow the trail of some infamous ancestors to track down a long lost treasure. However, the real prize isn't hidden in a chest. It's the discovery of the Madrigals' most dangerous secret and, even more shockingly, the true identity of the mysterious man in black."--Amazon.com.

After their father's research experiment at the British Museum unleashes the Egyptian god Seth, Carter and Sadie Kane embark on a dangerous journey across the globe--a quest which brings them ever closer to the truth about their family, and their links to a secret order that has existed since the time of the pharaohs.