Monster Down Deep

by Amy Fellner Dominy

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 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?

304 pages, Kindle Edition

Expected publication February 12, 2026

About the author

Hi! I write contemporary books for kids and teens and anyone who loves adventure, nature, laughter and a bit of magic. Coming in 2026: MONSTER DOWN DEEP, a middle grade adventure and A HOUSE WITH NO DOOR, a picture book about the harvest holiday of Sukkot. For news, giveaways and sneak peeks, sign up for my monthly newsletter at www.amydominy.com/newsletter. Thanks for following me here!

Reviews

[Kelly Hager · Rating 5 out of 5]

This is simply the loveliest book—clever, touching and literally laugh out loud funny in parts. Everything about it is delightful and five stars aren’t enough.

[Pam · Rating 4 out of 5]

Digital ARC. Middle grade children’s book. Adventure and coming of age story.

[Gae Polisner · Rating 5 out of 5]

Review forthcoming. A middle grade story told to perfection with humor and so much humanity.

[Terry Johnson · Rating 5 out of 5]

Review to come.

Absorbing, fun, and wonderfully unique!