It all starts with Shadows of the Mind...from there you will be taken on a journey through Jacob's eyes into the weird and wonderful world that is Pembroke Eve. Be prepared for aliens, dragons, insectmans, time vampires and lots and lots of hot m/m loving! You won't be disappointed. Here are the books in order:

Shadows of the Mind
Light of the Body
Time of the Soul
Fire of the Heart
Hope of the Spirit