“Literature can use secrecy as a device to ensnare readers, to pull the wool over their eyes or to reveal to them things that the characters can’t see. Whether large – businessman by day, serial killer by night; or small – where a character silently yearns for an ex-lover.” Eli Goldstone compiles a list for The Guardian of 10 novels whose characters are concealing big secrets, including a few lesser-knowns like Shirley Jackson‘s We Have Always Lived in the Castle and New Finnish Grammar by Diego Marani.