Profesör evli değildi ve kâhyası Bayan Macready ve (isimleri İvy, Margaret ve Betty olan, ama hikâyede fazla rolleri olmayan) üç hizmetçi ile birlikte çok büyük bir evde yaşıyordu.

The professor was not married and lived together with his housekeeper Mrs Macready and three servants (whose names were İvy, Margaret and Betty but who didn't play an excessive role in the story) in a very big house.