Book excerpt: The polarizing literary debut by Scottish author Ian Banks, The Wasp Factory is the bizarre, imaginative, disturbing, and darkly comic look into the mind of a child psychopath. Meet Frank Cauldhame. Just sixteen, and unconventional to say the least: Two years after I killed Blyth I murdered my young brother Paul, for quite different and more fundamental reasons than I'd disposed of Blyth, and then a year after that I did for my young cousin Esmerelda, more or less on a whim. That's my score to date. Three. I haven't killed anybody for years, and don't intend to ever again. It was just a stage I was going through.