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Description
Nina and the Mysterious MailboxBy: Rebel Girls, Marti Dumas Illustrator: Kristina Kister Series: Secret Society of Rebel Girls "Girls running for office, secret leadership lessons from the past, and a dash of mysterious mailbox magic? Yes please!" Kate Messner, New York Times best selling author of Breakout and the History Smashers series A school election. A mysterious mailbox. And a letter from . . . Cleopatra? Middle school is so weird. Nina is determined to help her best friend
By: Rebel Girls, Marti Dumas | Illustrator: Kristina Kister | Series: Secret Society of Rebel Girls"Girls running for office, secret leadership lessons from the past, and a dash of mysterious mailbox magic? Yes please!" —Kate Messner, New York Times best-selling author of Breakout and the History Smashers series
A school election.
A mysterious mailbox.
And a letter from . . . Cleopatra?
Middle school is so weird.
Nina is determined to help her best friend Maya win the race for 6th grade representative. But when she uses her robotics skills to spy on Maya’s opponent, the girls wind up in detention. There, they are asked to write a letter to a woman from history. Nina pours her heart out to Cleopatra, and instead of throwing the letter away so her parents don’t find it, she slips it into a battered old mailbox she and Maya find in the woods. It was all just a game . . . until a giant scroll arrives at Nina’s house, signed by Cleopatra herself!
Do the girls really have a pen pal from 2,000 years ago? Will their friend Zoe ever speak to them again? Why is their science teacher acting so oddly? And what on Earth is a time taco?
Original story and characters by Anna McCleery
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4.5 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 4
I could be a foot model now!!!
Size: 1 pair black L
I wear work boots almost all of the time so I bought these to put on my feet with salycylic acid to moisturize and try to get rid of a stubborn corn on the ball of my foot. It helped drastically after a few nights of lounging in the house with them on.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Favorite treat
Flavor Name: Duck & Veggies, Size: 5 Ounce (Pack of 1)
My dog loves these treats the best, and the spoiled pooch has tried many! I love that these are super small sized, not messy, and low calorie which allows for lots of reinforcement while training. I also appreciate that the ingredients are very clean.
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Reviewed in the United States on December 8, 2025
★★★★★ 5
Buy these only if you love your dog
Flavor Name: Duck & Veggies, Size: 5 Ounce (Pack of 1)
I was looking for a dog treat that didn’t have sugar. And let me tell you these training treats are not only delicious to the dogs, but I love that the ingredients do not include any sweetener. I don’t think it’s a good idea to give our dogs tons of sugar, unless we’re brushing their teeth every day like we do for our own teeth. So for the longevity of my puppies teeth, she’s gonna get these high-quality yummy Yum‘s. I love that I can break them apart and make more treats out of the treats they gave so the bag last for months, even with daily training.
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Reviewed in the United States on February 14, 2026
★★★★★ 5
Puppy Says YUM
Flavor Name: Duck & Veggies, Size: 5 Ounce (Pack of 1)
My girl loves these, and they fit most of the treat dispensing toys we have. Perfect for quick training treats too!
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Reviewed in the United States on December 11, 2025
★★★★★ 5
Perfection!
Flavor Name: Duck & Veggies, Size: 5 Ounce (Pack of 1)
Wonderful treat. My pups go wild and bounce around with pure joy. I have to hide the bag because these two figured out a whole MacGyver plot to snag them when I wasn’t looking. Cheeky little boys.
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Reviewed in the United States on December 8, 2025
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