As the wheezy old saloon crawled through the driving Dartmoor rain, Betty Carew fought desperately to control her rising terror. Beside her sat the malignant Dr. Laffin busy with his own evil and devious schemes. Neither was prepared for the twinkling light that brought the car to a sudden halt and disclosed the cowled figures of two sinister beings.
The Proud Sons of Ragousa had need of Dr. Laffin!
To Bill Holbrook, the Produ Sons meant nothing until he met that amiable cracksman, Mr. Toby Marsh. And what Toby had to tell spelt murder -- and worse!
As dark events took shape, Betty learnt the truth about the baleful Doctor, yet still it needed all Bill Holbrook's courage and Toby's ingenuity to combat the horror that came creeping upon them.