Another of my childhood favorites: ‘House of Stairs’ by William Sleator, published in 1974.

Never having heard anything of MC Escher, Kafka, Milgram or B.F. Skinner at the age of seven, these names come to mind years later. Themes include suspicion of authority and social breakdown under stress, similar to ‘Lord of the Flies’ but distinctly different. It’s a good read and it was my first for that theme, nostalgia is probably repsopnsible for making it better than all the later works on this theme.