Order of Book Series
0

New Adventures of Mary-Kate & Ashley Books in Order

New Adventures of Mary-Kate & Ashley contains 46 books, published between 1998 and 2005. The first book is The Case of the 202 Clues (1998) and the newest is The Case of the Unicorn Mystery (2005). Publication order is the reading order below.

Books
46
Published
1998–2005
Pages on record
3,441 in 41 of 46 books
Reading time
57–86 hours

Reading time is an estimate, not a recorded figure: 3,441 pages at 300 words a page, read at 200–300 words a minute, covering the 41 of 46 titles with a page count on record.

See all 46 books in order Printable New Adventures of Mary-Kate & Ashley checklist

New Adventures of Mary-Kate & Ashley is a children's mystery series about the fictional Olsen twins, catalogued with 46 books from 1998 to 2005. The writing credits are shared: Judy Katschke is named on 11 books, Melinda Metz on 8, Heather Alexander on 4, and Carol Ellis and Alice Leonhardt on 3 each. The Case of the 202 Clues (1998) opens the run, and that year also brought The Case of the Blue-Ribbon Horse and The Case of the Haunted Camp. The Case of the Unicorn Mystery (2005) is the last title, and subject tags include camps, dogs, horses and cheerleading.

How many New Adventures of Mary-Kate & Ashley books are there?

New Adventures of Mary-Kate & Ashley has 46 books, released between 1998 and 2005.

New Adventures of Mary-Kate & Ashley Books in Publication Order

The table lists all 46 New Adventures of Mary-Kate & Ashley 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. Cover of The Case of the 202 Clues by Nina Alexander, book 1 of the New Adventures of Mary-Kate & Ashley series (1998)
  2. Cover of The Case of the Blue-Ribbon Horse by I.K. Swobud, book 2 of the New Adventures of Mary-Kate & Ashley series (1998)
  3. Cover of The Case of the Wild Wolf River by Judy Katschke, book 3 of the New Adventures of Mary-Kate & Ashley series (1998)
  4. Cover of The Case of the Rock & Roll Mystery by Lisa Eisenberg, book 4 of the New Adventures of Mary-Kate & Ashley series
  5. Cover of The Case of the Ballet Bandit by Laura O'Neil, book 5 of the New Adventures of Mary-Kate & Ashley series (1998)
  6. Cover of The Case of the Haunted Camp by Nina Alexander, book 6 of the New Adventures of Mary-Kate & Ashley series (1998)
  7. Cover of The Case of the Missing Mummy by Francess Lin Lantz, book 7 of the New Adventures of Mary-Kate & Ashley series
  8. Cover of The Case of the Disappearing Princess by Lisa Eisenberg, book 8 of the New Adventures of Mary-Kate & Ashley series
  9. Cover of The Case of the Green Ghost by Carol Ellis, book 9 of the New Adventures of Mary-Kate & Ashley series (1999)
  10. Cover of The Case of the Surprise Call by Melinda Metz, book 10 of the New Adventures of Mary-Kate & Ashley series (1999)
  11. Cover of The Case of the Great Elephant Escape by June Doolittle, book 11 of the New Adventures of Mary-Kate & Ashley series
  12. Cover of The Case of the Summer Camp Caper by Judy Katschke, book 12 of the New Adventures of Mary-Kate & Ashley series
  13. Cover of The Case Of The Surfing Secret by Cathy East Dubowski, book 13 of the New Adventures of Mary-Kate & Ashley series
  14. Cover of The Case of the Big Scare Mountain Mystery by Carol Ellis (1999)
  15. Cover of The Case of the Slam Dunk Mystery by Cathy East Dubowski, book 15 of the New Adventures of Mary-Kate & Ashley series
  16. Cover of The Case of the Rock Star's Secret by Melinda Metz, book 16 of the New Adventures of Mary-Kate & Ashley series
  17. Cover of The Case of the Cheerleading Camp Mystery by Lisa Fiedler (2000)
  18. Cover of The Case of the Flying Phantom, book 18 of the New Adventures of Mary-Kate & Ashley series (2000)
  19. Cover of The Case of the Creepy Castle, book 19 of the New Adventures of Mary-Kate & Ashley series (2000)
  20. Cover of The Case of the Golden Slipper by Melinda Metz, book 20 of the New Adventures of Mary-Kate & Ashley series (2000)
  21. Cover of The Case of the Flapper 'Napper by Judy Katschke, book 21 of the New Adventures of Mary-Kate & Ashley series (2001)
  22. Cover of The Case of the High Seas Secret by Alice Leonhardt, book 22 of the New Adventures of Mary-Kate & Ashley series
  23. Cover of The Case of the Logical I Ranch by Pauline Preiss, book 23 of the New Adventures of Mary-Kate & Ashley series (2001)
  24. Cover of The Case of the Dog Camp Mystery by Judy Katschke, book 24 of the New Adventures of Mary-Kate & Ashley series (2001)
  1. 1
    The Case of the 202 Clues1998 · 87 pages · confirmed 1/4
    199887
    Buy at Amazon USAmazon UK
  2. 2
    The Case of the Blue-Ribbon Horse1998 · 86 pages · confirmed 1/4
    199886
    Buy at Amazon USAmazon UK
  3. 3
    The Case of the Wild Wolf River1998 · 87 pages · confirmed 1/4
    199887
    Buy at Amazon USAmazon UK
  4. 4
    The Case of the Rock & Roll Mystery1998 · 87 pages · confirmed 1/4
    199887
    Buy at Amazon USAmazon UK
  5. 5
    The Case of the Ballet Bandit1998 · 87 pages · confirmed 1/4
    199887
    Buy at Amazon USAmazon UK
  6. 6
    The Case of the Haunted Camp1998 · 85 pages · confirmed 1/4
    199885
    Buy at Amazon USAmazon UK
  7. 7
    The Case of the Missing Mummy1998 · confirmed 1/4
    1998–
    Buy at Amazon USAmazon UK
  8. 8
    The Case of the Disappearing Princess1999 · 86 pages · confirmed 1/4
    199986
    Buy at Amazon USAmazon UK
  9. 9
    The Case of the Green Ghost1999 · confirmed 1/4
    1999–
    Buy at Amazon USAmazon UK
  10. 10
    The Case of the Surprise Call1999 · 86 pages · confirmed 1/4
    199986
    Buy at Amazon USAmazon UK
  11. 11
    The Case of the Great Elephant Escape1999 · 83 pages · confirmed 1/4
    199983
    Buy at Amazon USAmazon UK
  12. 12
    The Case of the Summer Camp Caper1999 · 84 pages · confirmed 1/4
    199984
    Buy at Amazon USAmazon UK
  13. 13
    The Case Of The Surfing Secret1999 · 96 pages · confirmed 1/4
    199996
    Buy at Amazon USAmazon UK
  14. 14
    The Case of the Big Scare Mountain Mystery1999 · 83 pages · confirmed 1/4
    199983
    Buy at Amazon USAmazon UK
  15. 15
    The Case of the Slam Dunk Mystery2000 · 81 pages · confirmed 1/4
    200081
    Buy at Amazon USAmazon UK
  16. 16
    The Case of the Rock Star's Secret2000 · 85 pages · confirmed 1/4
    200085
    Buy at Amazon USAmazon UK
  17. 17
    The Case of the Cheerleading Camp Mystery2000 · 84 pages · confirmed 1/4
    200084
    Buy at Amazon USAmazon UK
  18. 18
    The Case of the Flying Phantom2000 · confirmed 1/4
    2000–
    Buy at Amazon USAmazon UK
  19. 19
    The Case of the Creepy Castle2000 · 85 pages · confirmed 1/4
    200085
    Buy at Amazon USAmazon UK
  20. 20
    The Case of the Golden Slipper2000 · 86 pages · confirmed 1/4
    200086
    Buy at Amazon USAmazon UK
  21. 21
    The Case of the Flapper 'Napper2001 · 84 pages · confirmed 1/4
    200184
    Buy at Amazon USAmazon UK
  22. 22
    The Case of the High Seas Secret2001 · 84 pages · confirmed 1/4
    200184
    Buy at Amazon USAmazon UK
  23. 23
    The Case of the Logical I Ranch2001 · 86 pages · confirmed 1/4
    200186
    Buy at Amazon USAmazon UK
  24. 24
    The Case of the Dog Camp Mystery2001 · 84 pages · confirmed 1/4
    200184
    Buy at Amazon USAmazon UK
  25. 25
    The Case of the Screaming Scarecrow2001 · 77 pages · confirmed 1/4
    200177
    Buy at Amazon USAmazon UK
  26. 26
    The Case of the Jingle Bell Jinx2001 · 77 pages · confirmed 1/4
    200177
    Buy at Amazon USAmazon UK
  27. 27
    The Case of the Game Show Mystery2002 · 83 pages · confirmed 1/4
    200283
    Buy at Amazon USAmazon UK
  28. 28
    The Case of the Mall Mystery2002 · 84 pages · confirmed 1/4
    200284
    Buy at Amazon USAmazon UK
  29. 29
    The Case of the Weird Science Mystery2002 · 78 pages · confirmed 1/4
    200278
    Buy at Amazon USAmazon UK
  30. 30
    The Case of Camp Crooked Lake2002 · 79 pages · confirmed 1/4
    200279
    Buy at Amazon USAmazon UK

Where to start with New Adventures of Mary-Kate & Ashley

Start with The Case of the 202 Clues (1998), the earliest published title.

What is the newest New Adventures of Mary-Kate & Ashley book?

The Case of the Unicorn Mystery (2005) is the newest New Adventures of Mary-Kate & Ashley book released so far.

Is there a new New Adventures of Mary-Kate & Ashley book coming?

No next New Adventures of Mary-Kate & Ashley book is announced in the catalogue, which is a gap in the listings it merges rather than a sign that the run has ended.

New Adventures of Mary-Kate & Ashley at a glance

No recent titles
The newest New Adventures of Mary-Kate & Ashley title on record dates from 2005, 21 years ago. No later title is catalogued.
Release pace
New Adventures of Mary-Kate & Ashley books have appeared more than one a year on average.
Length
3,441 pages across the 41 of 46 books with a recorded length, a median of 84 pages each.
Busiest decade
Most New Adventures of Mary-Kate & Ashley books, 32 of 46, were published in the 2000s.
Attribution
Of the 46 titles, 11 are credited to Judy Katschke, 8 to Melinda Metz, 4 to Heather Alexander and 3 to Carol Ellis. A further 14 writers are credited. 2 titles carry no credit.

What the New Adventures of Mary-Kate & Ashley books are about

44 of the 46 New Adventures of Mary-Kate & Ashley books carry subject tags in Open Library's catalogue. The subjects below are the ones that recur across them, most frequent first: children's fiction is tagged on 36 of 44. The subjects are cataloguers’ headings, not a plot summary.