The Cypher Wheel (Custodian Novel #3)
by Alison Pensy
Faen was worried about his charge. Faedra had locked herself away in the cottage for 6 months. She was having trouble controlling her newly acquired powers, and was terrified of hurting someone. When Etyran obtained some tickets for a treasure hunt, she was persuaded to get out of the house and back into the real world. It was only a treasure hunt, what could possibly go wrong...?