As soon as Sara Sheridan’s The Secrets of Blythswood Square crossed my radar I pounced on it as it’s a novel which springs from the exact scenario (and some of the characters) I drew on for In the Blink of an Eye. Coincidentally in the same week Sally Magnusson’s Music in the Dark was a kindle offer I couldn’t refuse and it also begins in Scotland in the heroine’s childhood during the 1840s. In fact although each of these novels enlarged my vision of the time and place,  they did so in very diff...