Grandma Pocket is Polly’s grandmother. She may be short, but she has a big personality. Like Polly, Grandma is an adventurer and even though she’s aged she’s just as active as ever. As Grandma tells Polly, each person who owned the locket used it to show that the littlest person can make the biggest difference. Even Grandma had a turn with the locket, being the first woman on the moon, and used her pocket powers to make the moon landing successful. One pocket-sized step for humans, one big step for humankind!