
Monster Down Deep
Amy Fellner Dominy(Author)
Pushkin Children's Books (Publisher)
Published on 12. February 2026
Book
Paperback/Softback
304 pages
978-1-78269-551-6 (ISBN)
Description
YACHT SINKS! JEWELLERY LOST! MASSIVE REWARD OFFERED!
Ever since the shipwreck, California's golden coast has been filled with treasure hunters. Each one is after the same thing: the lost diamond necklace. But none are more determined than Cassie Stein. Her dad's beloved aquarium is falling apart, and they need money - fast!
While racing to find the treasure before her rival, TJ, Cassie finds something remarkable. A fish, unlike any she has ever seen, that can understand her every word. His name is Blue, and his life is in grave danger.
To save her new friend, Cassie must do the unthinkable - accept TJ's help. But with the diamond necklace still up for grabs, can she really trust him?
Ever since the shipwreck, California's golden coast has been filled with treasure hunters. Each one is after the same thing: the lost diamond necklace. But none are more determined than Cassie Stein. Her dad's beloved aquarium is falling apart, and they need money - fast!
While racing to find the treasure before her rival, TJ, Cassie finds something remarkable. A fish, unlike any she has ever seen, that can understand her every word. His name is Blue, and his life is in grave danger.
To save her new friend, Cassie must do the unthinkable - accept TJ's help. But with the diamond necklace still up for grabs, can she really trust him?
Reviews / Votes
I think I have found my favourite book of the year... Five of the biggest, fattest stars from us. This is a book I will never forget * Mini Travellers * A warmhearted tale grounded in healing relationships and a love of nature * Kirkus * The wonderful voice of Blue the fish had me enraptured from the very first sentence!... Especially recommend for lovers of Blueback by Tim Winton and The Lost Whale by Hannah Gold -- Lui Sit, author of Land of the Last Wildcat A warmhearted tale grounded in healing relationships and a love of nature * Kirkus * The book would make an excellent class story, full of suspense and adventure * Through the Bookshelf * A joyous romp of a novel, as energetic and unpredictable as the sea itself * Books For Keeps * Human and inhuman voices weave well together, and Cassie's individuality stays strong alongside her insecurity * Armadillo * A heartfelt read interspersed with humour and honesty * My Shelves Are Full * I've never been so invested in a fish-out-of-water tale. Absorbing, fun, and wonderfully unique -- Terry Lynn Johnson, author of Sled Dog School This charming middle-grade novel had me hooked from the very first page -- Olivia Wakeford, author of My Dog A memorable and compelling adventure about facing long-buried fears while standing up to protect an unusual creature... A treasure of a story! -- Lynne Kelly, author of Song For a Whale A pitch-perfect middle grade. Funny, adventurous, and full of humanity -- Gae Polisner, author of Consider the Octopus This middle-grade novel offers readers excitement, empathy, and a gentle reminder that the greatest treasures are often the ones we protect rather than possess * katys_book_shelf *More details
Language
English
Place of publication
United Kingdom
Publishing group
Pushkin Press
Target group
Children/juvenile
Interest Age: From 9 to 11 years
Product notice
Paperback (UK-B)
Dimensions
Height: 196 mm
Width: 129 mm
Thickness: 26 mm
Weight
270 gr
ISBN-13
978-1-78269-551-6 (9781782695516)
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited or by the publishers or by their respective licensors: all rights reserved.
Schweitzer Classification
Other editions
Additional editions

Amy Fellner Dominy
Monster Down Deep
E-Book
02/2026
Pushkin Children's Books
€7.19
Available for download
Person
Amy Fellner Dominy is an MFA playwright and the award-winning author of nine books for children including young adult, middle grade, and picture books. She loves writing for children of all ages and is especially drawn to stories that celebrate kids who could be anyone and choose to be themselves. Amy lives in Phoenix, Arizona with her husband, a cat who thinks she's a dog and a dog who rarely thinks at all.