The books starts off well, promising to investigate other hypotheses, but quickly jumps to the conclusion that Spontaneous Human Combustion is the only possibility. It would have been better if it had spent more time looking at how a body could possibly burn like that and less time claiming that it must have combusted by itself. I would have rated the book higher if it hadn't been for the sorry attempt to link in the "Philadelphia Experiment" fable while searching for causes of this yet unproven phenomenon. On a positive note, it does have a very good list of alleged occurances of SHC, with enough details to allow further research.