Last Days of Jack Sparks

''MAGNIFICENT'' Alan Moore
''I COULDN''T PUT THE BOOK DOWN'' Ron Howard
''CHILLING AND UTTERLY IMMERSIVE'' M. R. Carey

It was no secret that journalist Jack Sparks had been researching the occult for his new book. No stranger to controversy, he''d already triggered a furious Twitter storm by mocking an exorcism he witnessed.

Then there was that video: forty seconds of chilling footage that Jack rep...