Anthony Gilbert 
The Looking Glass Murder [EPUB ebook] 

Solange Peters ‘died’ — and so did the scandal and suspicion that haunted her. So now she has the chance for a new life . . . Classic crime from one of the greats of the Detection Club A bizarre accident gave Solange the chance to assume a new identity — and, as Julie Taylor, she set out to do just that, as companion to wealthy, neurotic Bianca Duncan. But soon she is plunged into a distorted and terrifying existence. A menace to Bianca’s life is growing daily and a strange young man could expose Julie’s masquerade. Suddenly the new identity seems far from safe, as Julie is forced to fight for her own life.