Book Series · 6 Books

The 39 Clues: Cahills vs. Vespers Books

In order from The Medusa Plot to Day of Doom. Part of The 39 Clues.

The Medusa Plot
A King's Ransom
The Dead of Night
Shatterproof
Trust No One
Where the story begins

First Book in the Series

The Medusa Plot
Sale price
$1248
Book #1 · Chapter Book · Ages 8–12 · 2011

The Medusa Plot

By Gordon Korman

A shadowy group kidnaps family members. Can two siblings save them before time runs out?

222 pages· 46,136 words· Est. 6.5 hour read
$12.99Save 4%
Hardcover
Summary: Thirteen-year-old Dan and his sister Amy face a new threat as the mysterious Vespers kidnap their family. With only days to meet a strange ransom demand, they must unravel the Vespers' true intentions. If they fail, their loved ones—and the world—are at risk. Can they outsmart the Vespers and protect the Clues that hold unimaginable power?
In reading order

The 39 Clues: Cahills vs. Vespers Series

6 books · Published 2011–2013

#1
The Medusa Plot
#1 in Series
Sale price
$1248

The Medusa Plot

Chapter Book · Ages 8–12 · 2011

A shadowy group kidnaps family members. Can two siblings save them before time runs out?

#2
A King's Ransom
#2 in Series
Sale price
$1248

A King's Ransom

Chapter Book · Ages 8–12 · 2011

Siblings race against time to find a lost map or risk losing their family forever.

#3
The Dead of Night
#3 in Series
Sale price
$1248

The Dead of Night

Chapter Book · Ages 8–12 · 2012

An innocent boy's life hangs in the balance. Can Amy and Dan outsmart the Vespers?

#4
Shatterproof
#4 in Series
Sale price
$1248

Shatterproof

Chapter Book · Ages 8–12 · 2012

Amy and Dan must steal a diamond or face dire consequences while uncovering dangerous secrets.

#5
Trust No One
#5 in Series
Sale price
$1248

Trust No One

Chapter Book · Ages 8–12 · 2012

A hidden traitor threatens Amy and Dan's family. Can they uncover the mole before it's too late?

#6
Day of Doom
#6 in Series
Sale price
$1248

Day of Doom

Chapter Book · Ages 8–12 · 2013

A global treasure hunt turns deadly as siblings race to stop a catastrophic plot.

Good to know

Common Questions

How many books are in the 39 Clues: Cahills vs. Vespers series?

There are 6 books in the 39 Clues: Cahills vs. Vespers series. It began with The Medusa Plot in 2011, and the newest book, Day of Doom, was published in 2013.

What order should you read the 39 Clues: Cahills vs. Vespers books in?

Start with The Medusa Plot and follow the series order — the books above are numbered #1 through #6.

What ages are the 39 Clues: Cahills vs. Vespers books best for?

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

Which 39 Clues: Cahills vs. Vespers book is the longest?

Day of Doom is the longest book in the series at 55,036 words (270 pages).

Which 39 Clues: Cahills vs. Vespers book is the shortest?

The Dead of Night is the shortest at 37,510 words (192 pages).

The people

The Creatives Behind the Books

The authors and illustrators who bring The 39 Clues: Cahills vs. Vespers to life.

01

Gordon Korman

Author
02

Jude Watson

Author
03

Peter Lerangis

Author
04

Roland Smith

Author
05

Linda Sue Park

Author
06

David Baldacci

Author

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