Upon A Tide of Wintry Morn (Ashen Twilight #1.5)

Prequel to Within the Shadows of Mortals (Book 2 in the Ashen Twilight Series)

A greater threat looms over the three houses as they move westward for a better life. Shades of the past return as Ariya senses a connection between Alexandru Drago and his prince, Vlad Tepes III aka Vlad Dracul, as she relives their conspiracy to take the throne of Wallachia using a secret army. At the same time, Jace relives his father's burial in the Highlands of Scotland and muses over living with Ariya in the Aziza fairy realm.