Without any forewarning, the madness struck. One moment the busy steel-mill town of Keystone was a peaceful industrial community... the next, it had become a shambles of murder, madness and ruthless midnight slaughter. Horror walked its streets, and terror lurked in every close-locked home... Could the Spider, hastening to answer the distressed call of the dismayed inhabitants, prevail against the death which struck from darkness? A stranger in a place of madness, unsupported by friends or allies, Richard Wentworth faces his greatest test — alone!