Review From User :
An absolute classic from the mid 70s. A mysterious fog appears and drives human beings into madness. Here you really understand the term homo hominis lupus! The government is trying to do everything to stop the fog from moving to London. In vain. The fog reaches London. Will John Holman, the main character, who survived the fog, be able to stop this "deadly man made disease" in the end I think this is the best book if you want to read something in the section something escaped from the laboratory and mutated into a terminal threat. Be warned some explicit scenes are waiting on you. I also liked the London localities here as I know them quite well. Absolute recommendation when you're in for a real thrill!
A peaceful village in Wiltshire is shattered by a disaster which strikes without reason or explanation, leaving behind a trail of misery and horror. A yawning, bottomless crack spreads through the earth, out of which creeps a fog that resembles no other. Whatever it is, it must be controlled.