"There's more to Aria than meets the eye. She's a guardian angel. And to earn her wings, she'll have to help three different girls... Aria's first mission is Gabby Torres. Gabby's brother is sick, and Gabby's been so worried about him for so long, she's forgotten who she is. When a new school offers her a fresh start, Gabby learns it's hard to make friends while keeping half her life a secret. Then Aria shows up. Aria, who knows exactly what to say and do to make Gabby feel better. Can Aria help Gabby find herself again? And will Gabby still trust Aria when she discovers what her new friend really is?" -- Unedited summary from book.