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Unicorn Diaries #11

The Secret of the Lost Gold: A Branches Book (Unicorn Diaries #11)

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Bo and the unicorns meet a majestic griffin who is guarding an ancient secret in this early chapter book from the New York Times bestselling author-illustrator of Owl Diaries!



Pick a book. Grow a Reader!

This series is part of Scholastic's early chapter book line, Branches, aimed at newly independent readers. With easy-to-read text, high-interest content, fast-paced plots, and illustrations on every page, these books will boost reading confidence and stamina. Branches books help readers grow!

In this eleventh book in the USA Today bestselling Unicorn Diaries series, a terrible storm ruins homes all across Sparklegrove Forest. Bo and the unicorns go to the castle to seek help from Queen Juniper. They learn there is an ancient spell that can restore everyone's homes. But in order to perform that spell, they need to find a cave of ancient gold that is guarded by a mythical creature. Will Bo and the other unicorns be able to save the forest? With full-color artwork throughout and plenty of smiles, your young reader won't be able to put this book down!

80 pages, Paperback

Published February 4, 2025

53 people are currently reading
74 people want to read

About the author

Rebecca Elliott

214 books300 followers
Rebecca Elliott is the author and illustrator of the best-selling Owl Diaries series (Scholastic US) & over 20 picture books including Just Because, Sometimes, Naked Trevor and Zoo Girl, for which she was nominated for the 2012 Kate Greenaway Medal.
Her new series The Unicorn Diaries (Scholastic US) & her first YA novel 'Pretty Funny ' (Penguin Random House) are out now.

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5 stars
53 (54%)
4 stars
26 (26%)
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18 (18%)
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Displaying 1 - 8 of 8 reviews
Profile Image for Bethany.
Author 22 books98 followers
May 28, 2025
When a really bad storm comes through, it destroys the homes of many creatures. In order to rebuild them, they're going to need gold, but there's a legend behind the Lost Gold. A king hid it away in a cave for safe-keeping and it's heavily guarded by a griffin. They're fierce protectors and really rare. This one hides by Black Diamond Lake, which is one of the scariest parts of the Dark Woods. But Bo won't let that deter them. Together, they can tackle the creepiness of the Dark Woods and its inhabitants and get the chance to meet Edgar the Griffin. Bo and the unicorns learn just how special griffins really are.

THE SECRET OF THE LOST GOLD is an early chapter book full of magic, adventure, friendship, and mythical creatures. Just like the other books in the series, it's written in diary format. My daughter and I always love the UNIFACTS, along with the lore and world-building this author has developed over the span of this series. I also love how Bo and the unicorns run into their friend Barry, who appears to be a scary wolf, but he's actually really nice. It goes against the typical stereotypes which adds more character to the story. The illustrations are as cute as ever and I love the portrayal of Edgar the Griffin. In the back of the book there are some suggestions to get a discussion going and some questions to enhance a child's retention of the story.


Final Verdict: I would recommend this to children aged six and older who love magical creatures, unicorns, friendship, and adventure. This is one of my daughter's favorite series and as a parent, I'm never disappointed. The author teaches great morals with these stories and the diary format is much more intriguing to younger readers which encourages them to read more (at least that's how it is with my daughter).
Profile Image for Jasmine Scott.
105 reviews1 follower
September 1, 2025
Me: How did you like the book?
Fae: I liked because
Me: You know it’s I liked the book because
Fae: I liked the book because the Griffin turned friends and it made the unicorns so happy and it fixed the forest! The end!
And how many stars?:
Fae: 5 stars because they made friends with the Griffin and it’s the most amazing creature in the world and I like Griffins now!
Profile Image for Jo Jeffries.
Author 12 books3 followers
July 16, 2025
A fun story about helping each other after a storm damages their community. They journey to find the lost gold so they can complete a spell. A colorful story that infuses helping and kindness through the story line.
Profile Image for Jessica.
5,050 reviews5 followers
August 5, 2025
My daughter really, really likes this series, and she brings out her big stuffed unicorn that she pretends is her sister when we read them. I liked the Griffin creature in this one. The unicorn kids go on an adventure to find ancient gold after a storm rips through their part of the forest.
Profile Image for Aubrey Benishek.
52 reviews
Read
May 12, 2025
Juliette gives this a 4.5 ⭐️ and especially loved the unicorn powers against the giant.
Profile Image for Thea Michael.
42 reviews1 follower
September 14, 2025
I really loved it. The unicorns rode on the back of a griffin. And monte turned bigger than a giant.
This entire review has been hidden because of spoilers.
Displaying 1 - 8 of 8 reviews

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