Screamworld / Edmund Glasby.

When the insurance official sent to check out an accident at a gruesome theme park called Screamworld goes missing, private investigator John Brent is called in. Could the disappearance be linked with the unusual creator of the park - or are there other forces at work? What Brent finds behind the park's ghastly facade far exceeds his worst expectations, and threatens to drag him into a terrifying maelstrom of murder and madness, as the true purpose of the main attraction becomes all too clear...