The 39 Clues

The 39 Clues franchise consists of four series, with Doublecross - the fourth series - currently being released. The series itself has a fairly large following predominantly consisting of young adults, with an official Message Board (now known as the Doublecross forum) run by Scholastic and Wiki

The first series is plainly called The 39 Clues, but most readers refer to it as The Clue Hunt (TCH). It consists of eleven books. The second series is Cahills vs. Vespers (CVV), which involves all Cahills, united, to defeat a common enemy: the Vespers. The third series, Unstoppable, features the Cahills against a new enemy - J. Rutherford Pierce. The fourth series is the Doublecross series. Extra books are Rapid Fire (7), Cahill Files (6), Agent Handbook, and The Black Book of Buried Secrets.

  • Go to Rapid Fire
  • Go to Rapid Fire
  • Go to Rapid Fire
  • Go to Rapid Fire
  • Go to Rapid Fire
  • Cahill Files
  • Go to The Black Book of Buried Secrets
  • Go to Vespers Rising


The 39 Clues

  • Go to The Maze of Bones
  • Go to One False Note
  • Go to The Sword Thief
  • Go to Beyond the Grave
  • Go to The Black Circle
  • Go to In Too Deep
  • Go to The Viper's Nest
  • Go to The Emperor's Code
  • Go to Storm Warning
  • Go to Into the Gauntlet

The Maze of Bones by Rick Riordan

One False Note by Gordan Korman

The Sword Thief by Peter Lerangis

Beyond the Grave by Jude Watson

The Black Circle by Patrick Carmen

In Too Deep by Jude Watson

The Viper's Nest by Peter Lerangis

The Emperor's Code by Gordan Korman

Storm Warning by Linda Sue Park

Into the Gauntlet by Margaret Peterson Haddix

  • Go to The Medusa Plot
  • Go to A King's Ransom
  • Go to The Dead of Night
  • Go to Shatterproof
  • Go to Trust No One
  • Go to Day of Doom


Cahills vs. Vespers

The Medusa Plot by Gordon Korman

A King's Ransom by Jude Watson

The Dead of Night by Peter Lerangis

Shatterproof by Roland Smith

Trust No One by Linda Sue Park

  • Go to Nowhere to Run
  • Go to Breakaway
  • Go to Countdown
  • Go to Flashpoint

Day of Doom by David Baldacci



Nowhere to Run by Jude Watson

Breakaway by Jeff Hirsh

Countdown by Natalie Standiford

  • Go to Mission Titanic
  • Go to Mission Hindenburg

Flashpoint by Gordan Kormon



Mission Titanic by Jude Watson

Mission Hindenburg by C. Alexander London

Mission Hurricane by Jenny Goebel

Mission Atomic by Sarwat Chadda

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