Highlander (Karen Marie Moning series)

The Highlander books are a series of paranormal romance/fantasy novels set in modern day and medieval Scotland, many featuring time-travel. While each novel stands alone, they involve similar story lines and recurring characters (most notably, Adam Black, the Fae Queen's consort).

In certain respects, the Highlander series is a prequel to the Fever series in that they introduce the world of the Fae, as well as the MacKeltar family, who feature in Faefever, Dreamfever and Shadowfever.