🔍 Ages 7–10 · 100% Screen-Free

Can you crack The Case of the Golden Trophy?

The trophy has vanished the night before the big tournament. Become a secret agent and solve the mystery through 50+ connected puzzles — crack codes, match fingerprints, escape mazes, and catch the culprit.

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✅ 50+ puzzles in one story ✅ Full answer key ✅ Master Detective certificate
The Case of the Golden Trophy book cover art
SECRET AGENT CASE FILESBook 1 · The Case of the Golden Trophy
The Evidence Kit

50+ puzzles woven into one real mystery

Not a random worksheet pile — every puzzle moves the case forward, from easy warm-ups to clever challenges.

Secret Codes & Ciphers

Caesar shifts, Pigpen, Morse, mirror writing and cryptograms — every code key is right on the page.

Mazes & Hidden Objects

Trace the trail through HQ and the school halls, and search the crime scene for every clue.

Fingerprints & Suspects

Match prints, read body language, and question five suspects to unmask the real culprit.

Spot-the-Difference

Sharpen your detective eyes across the desk, the gym, the hallway and the celebration.

Logic & Crosswords

Alibi grids, timelines and a case crossword that lock in what you've learned.

Answer Key + Certificate

Check every solution at the back, then earn a Master Detective certificate.

Case Files Declassified

Take a peek inside

A few real pages from the book — full colour, single-sided, easy to write on.

Spot the difference page
The five suspects page
Match the shadow page
Match key to door page
Decoder reference page
Top Secret

What's your secret agent code name?

The Mission Continues

Collect the Case Files

One case solved, more on the way. New mysteries, new codes, same young detective — you.

Book 1
Case File #1

The Case of the Golden Trophy

The trophy vanishes before the big tournament. 50+ puzzles to catch the culprit.

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Soon
Case File #2

The Vanishing Class Pet

Hammy the hamster is missing! A brand-new mystery with all-new codes to crack. Join the club to hear first.

Planned
Case File #3

Coming soon…

More cases are in the works. Got an idea for the next mystery? We read every reply from club members.

For Grown-Ups

Loved by kids. Trusted by parents & teachers.

  • ✓
    100% screen-free. Real pencil-and-paper focus, perfect for trips, quiet time and rainy days.
  • ✓
    Builds real skills. Logic, pattern-spotting, perseverance and reading — disguised as a fun mystery.
  • ✓
    Just-right difficulty. A gentle ramp from easy to clever keeps ages 7–10 confident and engaged.
  • ✓
    Great in the classroom. Single-sided pages, a full answer key, and self-checking puzzles.
Inside the book
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Open the Case

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Book cover

Paperback · full colour · 50+ puzzles · ages 7–10. Available on Amazon.

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