Changelings: Into the Mist: in Bloomington, MN

Changelings. They were the descendants of Man and Fae. They walked between worlds – as healers, mystics, even kings – but no more. He thought he was the last, alone and lost, until the day he saw them.
Irish teens Maureen O'Malley and Sean McAndrew are lost in time. To find a way home, they must curry favor with pirates, dodge a revolution, and defy a king out of Ireland's deepest legends.
They are Changelings, and they have magic in their blood - magic which will rekindle a centuries-old war that threatens to tear the very fabric of time.