The Dana Girls Mystery Stories (1934-1979)

1. By the Light of the Study Lamp (1934)

2. The Secret at Lone Tree Cottage (1934)

3. In the Shadow of the Tower (1934)

4. A Three-Cornered Mystery (1935)

5. The Secret at the Hermitage (1936)

6. The Circle of Footprints (1937)

7. The Mystery of the Locked Room (1938)

8. The Clue in the Cobweb (1939)

9. The Secret at the Gatehouse (1940)

10. The Mysterious Fireplace (1941)

11. The Clue of the Rusty Key (1942)

12. The Portrait in the Sand (1943)

13. The Secret in the Old Well (1944)

14. The Clue in the Ivy (1952)

15. The Secret in the Jade Ring (1953)

16. The Mystery at the Crossroads (1954)

17. The Ghost in the Gallery (1955)

18. The Clue of the Black Flower (1956)

19. The Winking Ruby Mystery (1957)

20. The Secret of the Swiss Chalet (1958)

21. The Haunted Lagoon (1959)

22. Mystery of the Bamboo Bird (1960)

23. The Sierra Gold Mystery (1961)

24. The Secret of Lost Lake (1963)

25. Mystery of the Stone Tiger (1963)

26. The Riddle of the Frozen Fountain (1964)

27. The Secret of the Silver Dolphin (1965)

28. Mystery of the Wax Queen (1966)

29. The Secret of the Minstrel's Guitar (1967)

30. The Phantom Surfer (1968)

1. Mystery of the Stone Tiger (1972)

2. The Riddle of the Frozen Fountain (1972)

3. The Secret of the Silver Dolphin (1972)

4. Mystery of the Wax Queen (1972)

5. The Secret of the Minstrel's Guitar (1972)

6. The Phantom Surfer (1972)

7. The Secret of the Swiss Chalet (1973)

8. The Haunted Lagoon (1973)

9. Mystery of the Bamboo Bird (1973)

10. The Sierra Gold Mystery (1973)

11. The Secret of Lost Lake (1974)

12. The Winking Ruby Mystery (1974)

13. The Ghost in the Gallery (1975)

14. The Curious Coronation (1976)

15. The Hundred-Year Mystery (1977)

16. Mountain-Peak Mystery (1978)

17. The Witch's Omen (1979)