Penny Parker Mystery

1 Tale of the Witch Doll (1939)
2 The Vanishing Houseboat (1939)
3 Danger at the Drawbridge (1940)
4 Behind the Green Door (1940)
5 Clue of the Silken Ladder (1941)
6 The Secret Pact (1941)
7 The Clock Strikes Thirteen (1942)
8 The Wishing Well (1942)
9 Ghost Beyond the Gate (1943)
10 Saboteurs on the River (1943)
11 Hoofbeats on the Turnpike (1944)
12 Voice from the Cave (1944)
13 Guilt of the Brass Thieves (1945)
14 Signal in the Dark (1946)
15 Whispering Walls (1946)
16 Swamp Island (1947)
17 The Cry at Midnight (1947)