Weeks, Sarah. Jumping the scratch

Weeks, Sarah. Jumping the scratch. Harper/Collins, 2006 [978-0-06-054109-5 // 0-06-054109-1]
After his aunt has a brain injury, his mom and Jaimie move into the Aunt's trailer to help her get along until as the doctors say, her memory can "jump the scratch." While there, Jaime meets a friend, Audrey who helps him find his own "scratch" in his memory. This 167 page book is a powerful story which is a good read.