The Pretenders Complete Collection

Dagr Neilsson never intended to send his brother to 1435.

When a fistfight turns magical and his younger brother is hurled through time, Dagr risks everything to bring Malcolm home - despite the fact he must find the mythical Seventh Key if he ever hopes to return. He thinks his prayers are answered by a headstrong young woman named Skye who assures him she knows exactly where the Key is hidden.
Skye Cameron will do anything to escape her betrothal, including stealing the Seventh Key from Malcolm once he helps her retrieve it.
As they join forces to search for the Key, Dagr and Skye soon realize their lives are entwined by more than just chance. Skye hates herself for the betrayal she will hand Dagr - and Dagr wonders if he will be strong enough to let Skye go.