Amy, Number Seven — Marilyn Kaye

Twelve-year-old Amy Candler is perfect in every way.  She has superhuman powers: Amy can perform like an Olympic gymnast, she knows the answer to every question in her classes, and she can see and hear things from a distance out of range for a normal person.

But the one thing Amy cannot do is remember anything about her past.  All she knows is that she keeps having a recurring nightmare that seems almost too real.  She has a birthmark she is certain wasn't there yesterday, a strange man is taking pictures of her, and she keeps getting anonymous warnings to keep her talents to herself.  Amy is in a race against time to piece together her identity before it is too late!