The Spellbinder's Mark (Set in the World of the Custodian Novels)
by Alison Pensy
Published: March 30, 2015.
Kat spent much of her life trying to fit in and be normal. The gift she possessed made her attempt to do so all the more challenging. Abandoned as a baby, she often wondered about the strange scars on her back, wondered what kind of person would do such a thing to a baby. When she barely escapes being mutilated for them, Kat has to consider there may be more to the marks than horrific abuse.