William Le Queux 
Four Faces : A Mystery 

"The Four Faces" is a must-read heart-stopping mystery that incorporates hypnotism, false identities, spurious foreigners, girls… The plot centers around wealthy Michael stumbles into the periphery of a large, sophisticated gang of thieves in early 1920’s England. His fiance, Dulcie, and her family are victimised, so he works with friends and authorities to bring the ruthless gang to justice.