The Sons of Fez (Paperback) (ISBN-13: 9780999074329)

Moroccan tour guide Ibrahim brings a busload of students from a summer Arabic program to stay in the medina (old city) of Fez, right next door to a newly-opened time portal. When a student goes missing, Ibrahim looks for him and slips into the past, where they find themselves in a fight to save the city. Along the way they come face to face with the mysteries of the medina, where history lives around every corner.