Once every five years, the Northern Clans from the Durupinen gather at Fairhaven Hall. There in the historic castle, surrounded by the very spirits these are bound to protect and serve, the clans settle disputes and shape the laws and regulations that govern the Gateways to the soul world. For the first time, Jess and Hannah Ballard need to represent their clan. It really is an incredible responsibility-a great honor . and they’re sure it’s going to be probably the most boring week of their lives.

Oh, how very wrong they may be.

For something dangerous is stalking the halls of Fairhaven. It lies in wait, impressive down victim after victim, undetectable and inescapable. No-one knows what it is, or what it desires, but a very important factor is clear: no-one is secure until it is captured.

As their fellow Durupinen fall victim one at a time, it will be up to Jess and Hannah, the newest members of the Trackers, to solve the mystery before the entirety from the castle is possessed.