The Death Triangle

1 Death House Rescue
2 Murder By the Dead
3 The Temple Bells
4 Circle of Death
5 The Death Triangle
6 The Voice of Death
7 Sabotage
8 Poison Death
9 The Phantom Voice
10 Hounds in the Hill
11 The Plot Murder
12 The Bride of Death
13 The White Legion
14 A Gift of Murder
15 A Mask for Murder
16 A Pass to Death
17 Aboard the Steamship Amazon
18 Air Freight Fracas
19 Appointment With Death
20 Black Rock