What do you do when Faerie asks a favor?

As a child, Ros Bolin escaped the Arcanum's clutches and helped topple a regime. Ten years later, having grown up in the relative safety of Faerie, Ros is adrift, anxious to make a life for herself beyond her parents' house but unsure of where to begin.

That is, until Faerie comes to call.

Kura, the realm's consciousness, feels the stirrings of an unknown threat and asks for Ros's help. Unfortunately, that means taking a position in the mortal realm as Faerie's liaison to the Arcanum?an Arcanum different from the one Ros fled but no less dangerous. With the help of her friends?a pair of wizards, an untrained faerie, a former foe, and a highly protective dragon?Ros searches for the cause of Kura's distress while trying not to throw fireballs at the infuriating new grand magus.

But the danger is greater than Ros imagines. If she can't solve the mystery, then Faerie and the Arcanum may fall. And the foe in the shadows is poised to set in motion a chain of events that not even Kura can stop...