The Long, Dark Teatime of the Soul, Douglas Adams
Tuesday, June 01, 2004
Dirk Gently's Holistic Detective Agency, Douglas Adams
Definitely not as inspired as The Hitchiker's Guide to the Galaxy.
I remember a murder investigation in which the crime scene featured an impossible murder; I believe a man's head was found spinning on a record player in a room to which all access between the murder and its discovery had been impossible. This reminds me of Legion, by William Blaty.