A Flicker in the Night — John Dean

When an old man dies in an arson attack, it's left to Detective Chief Inspector John Blizzard to investigate. But his inquiry becomes more complicated when several other old men perish in similar blazes. As Blizzard searches for answers, the shadow of a persistent arsonist who terrorized the city 20 years before hangs over him. The attacks have all the hallmarks of Reginald Marsh, now locked away in a mental hospital for his crimes. Are the police dealing with a copycat killer, or is Marsh, in some inexplicable way, returning to the city? For Blizzard to crack the case, he will have to reveal a dark and deadly secret.