Thirteen-year-old Talia longs for a better life, far away from her repressive stepmothers and the village of Sensholding, where books chronicling the adventures of the Heralds of Valdemar and their Companions offer her only escape. But when her family decide she is to be married, Talia flees, only to be rescued by one of the very Companions of legend, a magical steed with incredible powers.

Talia soon discovers she has powers of her own, and, together with her Companion, she arrives at the Collegium to fulfil her dreams and train as a Herald. But as Talia struggles to master her unique abilities, she unearths a deadly plot that could destroy both Queen and kingdom.

The Heralds of Valdemar omnibus sees Talia grow from teenage runaway to a Herald whose powers will affect the future of the entire realm.