A Plague of PythonsFrederik Pohl
This book is also known as Demon in the Skull.
The pythons had entered into Mankind. No man knew at what moment he might be Possessed! On Christmas the world's freedom died.
Every man, woman and child lay in the grip of fear, for no one knew at what moment his nearest friend or a casual stranger might suddenly be possessed by some brutal mind... and begin to murder and destroy.
For Chandler it was worse than for most. He was both victim and executioner. He had suffered himself, and he had committed a violent crime while under the strange domination. Accusing of hoaxing he was driven from his home. He wandered the world and found it smashed like a spoiled child's plaything - now Chandler was in the very presence of the destroyers! But what could one person do against such power? - the power of gods!
Genres: science fiction
Frederik George Pohl, Jr. (1919-2013) was an American science fiction writer, editor and fan, with a career spanning over seventy years. From about 1959 until 1969, Pohl edited Galaxy magazine and its sister magazine If, winning the Hugo for if three years in a row. His writing also won him three Hugos and multiple Nebula Awards. He became a Nebula Grand Master in 1993.
Frederik Pohl used these pseudonyms: Edson McCann, Jordan Park, Elton V. Andrews, Paul Fleur, Lee Gregor, Warren F. Howard, Scott Mariner, Ernst Mason, James McCreigh, Dirk Wilson, Donald Stacy and James MacCreigh.
Frederik Pohl. Wikipedia.