"It's quite a mystery, isn't it? I mean, how do you burn someone to death in public, and not have anyone notice?"Two people burst into flame, burned alive in front of plenty of eyewitnesses with no obvious cause. Spontaneous human combustion is a bizarre phenomenon, but according to published accounts, it happens. Could that be what occurred here? Or is it murder?As Jenna Blake turns nineteen, she is getting over a recent breakup and is rekindling an old flame. Between her personal life and college, she has enough on her hands. The last thing she needs is another nasty little puzzle.But the burn victims' clothes weren't flammable, the crime scenes reveal no evidence of arson, and none of the various witnesses can provide anything resembling a clue. In fact, she and Slick are just beginning to re-evaluate their faith in rational, scientific explanation when the fire claims another victim, and an incredible explanation presents itself. Even as they struggle with their discovery, the danger hits far too close to home....