- Series: Paul Vivanti Series Record # 42063
- Paul Vivanti
-
The Mystery of No. 1 (1925)
by
Sydney Horler
also appeared as:
- Variant: The Order of the Octopus (1926)
- The Worst Man in the World: Paul Vivanti Again (1929) by Sydney Horler
- Lord of Terror (1935) by Sydney Horler
- Virus X (1945) by Sydney Horler
-
The Mystery of No. 1 (1925)
by
Sydney Horler
also appeared as: