Mystery Stories

  1. The Secret of the Old Clock by Carolyn Keene
  2. The Hardy Boys series by Franklin W. Dixon
  3. Encyclopedia Brown, Boy Detective by Donald J. Sobol
  4. The Boxcar Children series by Gertrude Chandler Warner
  5. The Westing Game by Ellen Raskin
  6. The London Eye Mystery by Siobhan Dowd
  7. The Case of the Missing Marquess by Nancy Springer
  8. The Mysterious Benedict Society by Trenton Lee Stewart
  9. The Secret Series by Enid Blyton
  10. The Gollywhopper Games by Jody Feldman
  11. The Name of this Book is Secret by Pseudonymous Bosch
  12. The Secret Keepers by Trenton Lee Stewart
  13. The Edgar & Ellen series by Charles Ogden
  14. The Tower Treasure by Leslie McFarlane
  15. The Secret of the Haunted Mirror by Carolyn Keene
  16. The Case of the Golden Key by John R. Erickson
  17. The Secret of the Wooden Lady by Carolyn Keene
  18. The Case of the Stolen Sixpence by Holly Webb
  19. The Secret of the Red Arrow by Franklin W. Dixon
  20. The Mystery of the Hidden Beach by Carolyn Keene

These books offer engaging stories with intriguing mysteries and puzzles for kids to solve, encouraging them to think critically and use their imagination.