Twelve houses, book 4: Reader and Raelynx
Sharon Shinn2007

In this novel of secret sorceries and forbidden desires, the mystic Cammon must put aside his personal feelings for Princess Amalie while he reads the souls of her suitors for any potential threats. But Cammon is unable to read Amalie, and he begins to suspect that she herself possesses magic powers-a revelation which would put her life in danger, and throw the kingdom into chaos.