Buku yang Dikarang by Guy Newell Boothby

Dr. Nikola Returns

Pharos, the Egyptian

Dr. Nikola's Experiment

Farewell, Nikola

The Lust of Hate

Dr. Nikola's Experiment (Book #4)

Guy Newell Boothby

A Bid for Fortune

A Bid for Fortune or Dr Nikola's Vendetta

Guy Newell Boothby – The Complete Collection

Dr. Nikola's Experiment