The Fifth Key

When Time Walker Dagr Neilsson traveled to 1435 to save his wayward brother, he could never imagine Malcolm was living happily in the past as the sole heir to Castle Dunloch - or that his younger brother was now betrothed to the woman Dagr loved.
Skye Cameron will do anything to avoid her marriage, even if it means risking her life to find the sacred Fifth Key. After losing one chance at freedom, she is determined to find another way. Leaving Malcolm is something she can easily do, yet leaving his brother, Dagr, is not.
As they fight the tangled web of loyalty and magic, Dagr and Skye uncover secrets that could keep one of them in 1435 forever. Soon they must make a decision to escape - even if it means leaving someone they love behind.

Series Recommended Reading Order:
The Seventh Key
The Fifth Key
The Ninth Key