Book Series · 5 Books

The Code Busters Club Books

In order from The Haunted Lighthouse to The Search for the Missing Mascot.

The Code Busters Club series is a set of 5 chapter books by Penny Warner, published between 2012 and 2025. Written for ages 8–12, most books run about 180 pages.

The Haunted Lighthouse
The Mummy's Curse
The Hunt for the Missing Spy
The Secret of the Puzzle Box
The Search for the Missing Mascot
Where the story begins

First Book in the Series

The Haunted Lighthouse
Sale price
$674
Book #2 · Chapter Book · Ages 8–11 · 2012

The Haunted Lighthouse

A cryptic message sends young code enthusiasts on a treasure hunt at Alcatraz.

208 pages
$6.99Save 4%
Paperback
Summary: Cody and her friends, the Code Busters, embark on a thrilling treasure hunt on Alcatraz Island. Armed with their love for codes, they unravel a series of cryptic messages left by a notorious jewel thief. As they navigate the infamous prison, each clue brings them closer to a hidden fortune. Will their code-breaking skills be enough to uncover the island's secrets? Join the adventure and solve the puzzles alongside them, from Morse code to zigzag code, in this interactive mystery that challenges both the mind and the imagination.
In reading order

The Code Busters Club Series

5 books · Published 2012–2025

#4
Sale price
$1597

The Mummy's Curse

Chapter Book · Ages 8–12 · 2014

Kids crack codes to uncover a museum forgery before they're framed.

Good to know

Common Questions

How many books are in the Code Busters Club series?

There are 5 books in the Code Busters Club series. It began with The Haunted Lighthouse in 2012, and the newest book, The Search for the Missing Mascot, was published in 2025.

What order should you read the Code Busters Club books in?

Start with The Haunted Lighthouse and follow the series order — the books above are numbered #1 through #5.

What ages are the Code Busters Club books best for?

The series is best for ages 8–12, based on the age ranges of the individual books.

The people

The Creative Behind the Books

The people who bring The Code Busters Club to life.

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