John Harwood 
Asylum [EPUB ebook] 

A young woman wakes in a strange bed.A sickly light filters through a metal grille. Doctor Maynard Straker steps into the room, and speaks. Have no fear, Miss Ashton. I am entirely at your service. This, however, is not her name. And she should not be here in the Asylum.She is Miss Georgina Ferrars, and she can prove it. But when Dr Straker sends a telegram to her uncle in London, the reply is swift:GEORGINA FERRARS HERE STOP YOUR PATIENT MUST BE IMPOSTER STOPMadness? Mistaken identity? Or are there more malevolent forces at work?