The City of Arches is the third book in the Sitnalta Series of a epic fantasy story of magic, wizards, evil kings, betrayal, romance, war, and redemption. The City of Arches picks up a short time after the ending of The Kingdom Thief as Sitnalta explores her regained home and discovers a letter in which her mother proclaims her love for the wizard Kralc. Stunned, Sitnalta begins to read, taking the readers on a journey into the past to learn the true history of Queen Learsi: a princess in hiding, a forbidden love affair with an enigmatic wizard, and the creation of a magical coin. Kralc finds a ragged Learsi living on the streets after her home kingdom's destruction and presents an offer: help him set things right with the mysterious City of Arches and he will give her back her family and birthright. With her parents murdered and her kingdom in ruins, she doesn't know how he can achieve such a thing. All she knows is that she has nothing to lose.