The underground world of Fox Winterborn and his companions is a complex system that combines the mundane structures of Sevrin–cisterns, basements, root cellars, storm drains, and sewers–with the warren of ancient dwarf-built tunnels and chambers.
The Fox Den is a collection of underground chambers, the top “floor” of what was once a dwarf outpost. The most notable feature of the Den is the Feyglass, a large mirror with an ornately carved stone frame. This appears to be a window intp other times and places, for an ever-shifting vista of mountains, waterfalls, turquoise seas, and exotic cities emerge from the mists. Fox, who yearns for travel and adventure far from the islands of Sevrin, finds both torment and solace in the Feyglass.
Fox suspects that the mirror might also be a portal into other realms. He found Avidan lying on the floor in front of the mirror, with no memory of how he came to be in the tunnel. He tried to persuade his companions to move the den, but both Delgar and Vishni were adamant that they remain where they were. Fox suspects that both the dwarf and the fairy know more about the Feyglass than they’re willing or able to share.
Thanks to Delgar’s skill at stoneshifting, the path to the Den is an ever-shifting maze. Rhendish has tried for years to discover the secret of Fox’s ability to move through the city unseen and to disappear at will. The adept wishes to do more than apprehend the thief, more than recover the trove of weapons and magical items Fox has been stockpiling for nearly a decade. It is obvious to him that Fox has access to powerful allies, and he wants to know who they are and what their purposes might be.