39 Clues Books in Order

There are 42 39 Clues books, published between 2008 and 2016. The first book is The Maze of Bones (2008) and the newest is Mission Atomic (2016). Publication order is the reading order below.

Books
42
Published
2008–2016
Confirmed
20 of 42 titles
Pages on record
2,595 in 12 of 42 books

39 Clues is catalogued as a character entry covering 42 books published between 2008 and 2016. The listing opens with The Maze of Bones (2008) and ends with Mission Atomic (2016). Credit is spread across many writers: Jude Watson on 5 titles, Gordon Korman on 4, Rick Riordan on 3, and Peter Lerangis, Linda Sue Park, David Baldacci and C. Alexander London on 2 each. Subjects include code and cipher stories, orphans, family secrets, kidnapping and children's adventure, with Amy Cahill and Dan Cahill named as fictional characters. Sub-series recorded here are Rapid Fire, The Cahill Files, Doublecross, Super Special, Cahills vs. Vespers and Unstoppable.

How many 39 Clues books are there?

39 Clues has 42 books, released between 2008 and 2016.

39 Clues Books in Publication Order

The table lists all 42 39 Clues books in the order they were published, with the release year, the page count where one is on record, and how many independent book listings confirm each title. Catalogue data as of September 2026.

  1. 1
    The Maze of Bones39 Clues #12008 · 220 pages · confirmed 4/4
    2008220
  2. 2
    One False Note39 Clues #22008 · 174 pages · confirmed 4/4
    2008174
  3. 3
    The Sword Thief39 Clues #32009 · 160 pages · confirmed 3/4
    2009160
  4. 4
    Beyond the Grave39 Clues #42009 · confirmed 3/4
    2009
  5. 5
    The Black Circle39 Clues #52009 · confirmed 3/4
    2009
  6. 6
    In Too Deep39 Clues #62009 · confirmed 3/4
    2009
  7. 7
    The Viper's Nest39 Clues #72010 · 176 pages · confirmed 3/4
    2010176
  8. 8
    The 39 Clues: Agent Handbook39 Clues #82010 · confirmed 3/4
    2010
  9. 9
    The Emperor's Code39 Clues #92010 · confirmed 3/4
    2010
  10. 10
    Storm Warning39 Clues #102010 · confirmed 3/4
    2010
  11. 11
    Into the Gauntlet39 Clues #112010 · confirmed 4/4
    2010
  12. 12
    Legacy39 Clues: Rapid Fire #12011 · confirmed 2/4
    2011
  13. 13
    The Medusa Plot39 Clues: Cahills vs. Vespers #12011 · 222 pages · confirmed 3/4
    2011222
  14. 14
    A King's Ransom39 Clues: Cahills vs. Vespers #22011 · 190 pages · confirmed 3/4
    2011190
  15. 15
    Ignition39 Clues: Rapid Fire #22011 · confirmed 2/4
    2011
  16. 16
    Hunted39 Clues: Rapid Fire #32011 · confirmed 2/4
    2011
  17. 17
    Crushed39 Clues: Rapid Fire #42011 · confirmed 2/4
    2011
  18. 18
    Turbulence39 Clues: Rapid Fire #52011 · confirmed 2/4
    2011
  19. 19
    Invasion39 Clues: Rapid Fire #62011 · confirmed 2/4
    2011
  20. 20
    Fireworks39 Clues: Rapid Fire #72011 · confirmed 2/4
    2011
  21. 21
    Vespers Rising39 Clues #122011 · confirmed 4/4
    2011
  22. 22
    Operation Trinity39 Clues: The Cahill Files #12012 · confirmed 2/4
    2012
  23. 23
    The Submarine Job39 Clues: The Cahill Files #22012 · confirmed 2/4
    2012
  24. 242012
  25. 25
    The Redcoat Chase39 Clues: The Cahill Files #32012 · confirmed 2/4
    2012
  26. 262012
  27. 27
    The Houdini Escape39 Clues: The Cahill Files #42012 · confirmed 2/4
    2012
  28. 28
    Silent Night39 Clues: The Cahill Files #52012 · confirmed 2/4
    2012
  29. 292012
  30. 30
    The Black Book of Buried Secrets (Companion Book)39 Clues #132012 · confirmed 4/4
    2012

39 Clues Books in Chronological Order

By publication date, the 39 Clues books run from The Maze of Bones (2008) to Mission Atomic (2016), the sequence in the table above. No separate story order is recorded for 39 Clues in the book listings this catalogue merges, so publication order is the only order on record.

Where to start with 39 Clues

Start with The Maze of Bones (2008), the earliest published title.

What is the newest 39 Clues book?

Mission Atomic (2016) is the newest 39 Clues book released so far.

Is there a new 39 Clues book coming?

No next 39 Clues book is announced in the catalogue, which is a gap in the listings it merges rather than a sign that the run has ended.

39 Clues at a glance

No recent titles
The newest 39 Clues title on record dates from 2016, 10 years ago. No later title is catalogued.
Release pace
39 Clues books have appeared more than one a year on average.
Length
2,595 pages across the 12 of 42 books with a recorded length, a median of 221 pages each.
Busiest decade
Most 39 Clues books, 36 of 42, were published in the 2010s.
Corroboration
5 of the 42 titles appear in all four independent book listings, and 20 in at least three.
Attribution
Of the 42 titles, 5 are credited to Jude Watson, 4 to Gordon Korman, 3 to Clifford Riley and 3 to Rick Riordan. A further 12 writers are credited. 12 titles carry no credit.

What the 39 Clues books are about

21 of the 42 39 Clues books carry subject tags in Open Library's catalogue. The subjects below are the ones that recur across them, most frequent first: brothers and sisters is tagged on 15 of 21. The subjects are cataloguers’ headings, not a plot summary.

Series that include 39 Clues books

The series linked below has its own reading-order page.