The Great Case Chase: Under the Sea

Dive into 50 mysteries. Something fishy is going on.

Buy 5, get your 6th free—mix and match this series.

The kelp gardeners are missing a tool. A seahorse relay cannot start without its supplies. Even the bubble bakery has a mystery on its hands.

Dive into a playful underwater world of coral gardens, sea creatures, merfolk, and curious divers. Every case brings four new suspects, a missing object, and a trail of clues waiting for a sharp-eyed detective.

In The Great Case Chase, the words you find help you solve the mystery. Search four areas, compare the suspects and objects, and follow the evidence all the way to the hiding place.

How to crack a case

1. Search the scenes. Find every occurrence of the suspect names and objects across four word-search areas.
2. Follow the evidence. Compare where the words appear to identify the missing object and the suspect whose trail matches it.
3. Reveal the hiding place. Read the uncrossed circled letters to uncover the secret location and close the case.

Inside your casebook

• 50 standalone mysteries you can solve in any order.
• Four illustrated suspects and six possible missing objects in every case.
• 200 word-search areas packed with clues.
• A worked practice case, clear instructions, and complete solutions.

Made for curious kids who love a puzzle with a story. Share the first case, grab your pencils, and see who gets that first “I figured it out!” moment. Screen-free fun for quiet afternoons, family trips, and a little friendly detective competition.

Paperback details: 160 pages · English · The Great Case Chase, Case File No. 9 · PageTurn Puzzles.

Tropes & Vibes: Kid detective; underwater adventures; sea creatures and merfolk; missing objects; hidden messages.

How to get your free book

Mix and match any eligible books in The Great Case Chase Files—paperbacks, printable PDFs, or a mix of both.

Add all 6 books to your cart, including your free book. The lowest-priced eligible book is free automatically at checkout. No code needed.

One free book for every six eligible books: add 12 and get 2 free. This collection only. Eligible promotional codes may provide additional savings.