Recently I read two novels that had something in common - their narrators were unreliable. This was not because they were being untruthful, but because their grasp on reality was fragile due to the fact that their brains were damaged.
In Turn of Mind by Alice LaPlante, Dr. Jennifer White's best friend has been murdered and she finds herself a suspect. But there is a complication. Jennifer is suffering from advanced Alzheimer's dementia and half the time she can't remember that Amanda is dead, never mind if she was involved in her murder. Told completely from the point of view of Jennifer's deteriorating mind, you suffer with her as she slips further away from herself and those she loves. Your view of reality is hers - fractured, unsure and changeable as she has good days and bad days. While the murder and its solution is interesting in itself, it is only one aspect of the novel. It is also a fascinating look into the mind being lost to a horrible disease and a study of relationships - what binds people together and tears them apart.
S.J. Watson's Before I Go to Sleep opens with Christine waking beside a man she doesn't know, only to discover she is a middle age woman- not in her twenties like she remembers. The man, Ben, explains he is her husband and that she is suffering from a strange type of amnesia as a result of an accident. Every night when she sleeps she loses the past 20 odd years of memories. Christine soon discovers that unknown to Ben she is seeing a Dr. Nash who is trying to help her regain her memories and that she keeps a secret journal. As she reads her entries, Christine realizes that Ben may not be telling her the whole truth. Is he trying protect her from painful memories or is something more sinister going on? Knowing only what Christine does, the readers finds themselves on a roller coaster ride trying to figure out what is really going on and who to trust. This page turning thriller is hard to put down.