The Silver Link — Claire Lorrimer

Pretty Adela Carstairs had lived in a secure and loving home until her father died. But her happy world is shattered when her mother remarries a cruel, hard-drinking man. As her stepfather's drunken cruelty descends upon her younger brother and sister, Adela is forced to flee his drunken rages and they escape to London where they seek refuge in the squalor of the back streets. Addie's only hope is that her dear childhood companions, the twins Titus and Barnaby Malory, older than she, will rescue them. The handsome twins had always been there when she needed them, as they would prove yet again when all three find themselves caught up in the danger and terror of revolutionary France, the twins prove invaluable. Then Addie's growing love for one of them tests the link between the twins. All was to be an experience which would truly test their friendship, and love, to the limit.