by Sally Matheny Do you remember what it was like to be twelve years old? It’s not the easiest stage in life. Often times, tweens long for their lives to be different, be better. The main character of Hope Girl, River Starling, zeroes in on several things she’d like to change.   Missing Someone It’s taken most of her life to find her biological parents, now River’s number one goal is to reunite with them and become a family again. But it’s not going to be easy. Her mother has amnesia and her father is about to marry someone else!   River longs to talk with her best friend, but he’s…