After her mom left, Ada returned to her room to unpack the last few boxes. As she opened the first one, she was lost in a sea of memories. In it were soil samples, rocks, and some pressed leaves from the woods by her old house in West Virginia. The whole box smelled like West Virginia. There was also last year’s science project, which she’d worked on with her friend Anna. Anna and Ada had been partners in everything. They’d had a pet-sitting business together, and they had been three-legged race partners on field day. They had even placed first and second in the spelling bee. Most important, they had always been science project partners. Everyone called them A&A, but they called themselves A2.