The Lost Saint — Rachael Craw

An action-packed time travel romance perfect for young fans of Outlander and historical romantasy like Powerless.
 
Ana should be enjoying her last summer before college; instead, she's stuck with her ex on a pre-paid trip in Germany. She's determined to make the best of it, visiting castles outside Hamburg and drinking in the local myths of medieval saints and miracles.
 
On the night of the summer solstice, as a meteor streaks across the sky, Ana and her friends decide to attend a party in the sacred caves of Eadin forest. Suddenly, an earthquake strikes and scatters the partygoers. They stumble outside, straight into a snowy landscape where a furious battle rages.
 
In the chaos, Ana is separated from the group and comes face-to-face with Leon, a wounded holy warrior. She soon realizes she's been transported to the 14th century. Ana and Leon must set aside their mistrust of each other to search for safe passage away from the vicious Northmen who are pursuing both of their groups. As sparks begin to fly between them, Ana faces more dangers in the form of scheming lords, suspicious townsfolk, miracles she appears to be causing, and even Leon, who begins to wonder if this beautiful girl might be a saint or something far more sinister. Nothing is as it seems, and Ana finds herself caught in a power struggle between the church, the men of the North, and a magnetic young lord who is determined to use her as a bargaining chip.
 
With home looking ever more unreachable, Ana must determine who she is, whom she loves, and what she's willing to sacrifice to return to the present.