One bright ring

In One Bright Ring by Gretchen Géser, a girl sees a man drop the ring he means to use to propose to his girlfriend. The little girl tries to give it back to him, but things keep getting in her way! Follow this brave girl and count the obstacles she overcomes in her adventure to return the ring to its owner. She catches up to him just as he realizes he doesn't have the ring anymore . . . so she drops it in just the right place for him to find it.