Eighteen-year-old Jack Walker has followed in his father's footsteps his entire life....Living as a hunter and tracker in the Outland has made him hard and resilient. But something is about to happen that will rip him from a world so simple and primal and cast him into a realm ruled by machines, politics and lies.Queen Eleanor Eckert has sent for Jack and his father. As famous trackers the Queen of New Hope has need of their unique skills. A cry for help has reached her ears. A plea from a small city named Burrow Den were a creature of unknown origin is loose and the body count is rising.Now equipped with the latest in steam powered technology the two trackers are paired with a relentless female captain and an inspector with a dark past.What Jack doesn't know is that solving the mysterious origin of the deadly creature will put him in the middle of a lethal game.A game where success is finding out how deep the rabbit hole really goes...and failure means death.