Nina and the Keeper of the Keystone
- Author Marti Dumas
- Narrator Dana Heath
- Publisher Dorling Kindersley Ltd
- Publish Date 2 October 2025
- Run Time 5 hours and 21 minutes
- Format Audio
- Genre Children’s / Teenage fiction: Crime and mystery fiction, Children’s / Teenage fiction: Friendship stories, Children’s / Teenage fiction: General fiction, Children’s / Teenage fiction: Magical realism, Children’s / Teenage fiction: School stories, Children’s / Teenage personal and social topics: Diversity and inclusion, Children’s / Teenage personal and social topics: First experiences and growing up, Children’s / Teenage personal and social topics: Friends and friendships.
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Listen to a sample
What to expect
Now that the Three Musketeers (and Kai) are best friends again, this is going to be the best year ever! But Nina’s friends all seem to want her to take charge when all she wants to do is blend in. And on top of all that pressure, she’s keeping two fluffy little secrets from her moms...
When the school’s new superintendent ignores what the kids want, bringing in uniforms, shutting down clubs, and getting the best teachers in trouble, it’s time for action! Luckily Nina and her friends can turn to the mysterious mailbox for answers, and soon they have Ruth Bader Ginsburg’s advice in hand. Will it be enough to save Ada Lovelace Midde School and Ms. Jupiter? And will Nina finally feel ready to be a leader?
© 2025 Marti Dumas (P) 2025 DK Audio
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