Janus Equinox

In a world where spells are spoken, written, and sacrificed to, Kes has survived the cold streets of Yrita by being fast, forgettable, and stubborn to the bone. But when an outworlder's soul—William—suddenly appears in Kes' psyche, his life turns all the more dangerous. William wants nothing more than to go home, Kes wants to live long enough to call something his own, but Yrita, and the world of Aecigus, can only offer one chance to snatch it.

Dragged into Seravyn's schemes, a noble duelist whose eyes can see more than you'd think, the two are forced to share the power their bond awakens, as well as its costs. Bound by divine blessing and arcane law, hounded by the most intelligent scholars, the most pious of priests, to the lowliest of bandits, and by something older than either could imagine, they must accept that the only way forward is with each other's help.