The Guardians visited a cursed town, walked under the water of Prince William Sound, and battled Shadows wanting to wake the Sleeping Lady. What they want now is to relax and enjoy the Crystal-Con. Unfortunately, their fated callings have other plans.

A Hunter has gone rogue and Arion warriors have ventured from the Alaskan frontier to help hunt him down. But they can't do it alone. Venturing to the underground realm of the Hunters, the Guardians join the search. Distracted by high-tech gadgets and hover bikes, the team unknowingly falls into a trap.

But it will take more than a blinding headache to stop them.

Capturing the rogue comes easy... too easy. To their surprise, he has connections to the Sanctuary that challenge everything they thought they knew. Shadows. Secrets. Hidden agendas. How much more can the Guardians take before they go rouge themselves?