Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch(1990) is a World Fantasy Award nominated novel written in collaboration between Terry Pratchett and Neil Gaiman.
The book is a comedy and a quasi-parody of the 1976 film The Omen(as well as other books and films of the genre), concerning the birth of the son of Satan, the coming of the End Times and the attempts of the angel Aziraphale and the demon Crowley to avert them, having become accustomed to their comfortable situations in the human world. A subplot features the gathering of the four horsemen of the Apocalypse—War, Famine, Pollution (Pestilence having retired in 1936 following the discovery of penicillin), and Death—the last of whom is characterised in a manner reminiscent of the personification of Death in Pratchett's Discworldnovels and calls himself Azrael before his final exit.
It is the coming of the End Times: The Apocalypse is near, and Final Judgment will soon descend upon the human race. This comes as a bit of bad news to the angel Aziraphale (who was the angel of the Garden of Eden) and the demon Crowley (who, when he was originally named Crawley, was the serpent who tempted Eve to eat the apple), respectively the representatives of God and Satan on Earth, as they've actually gotten quite used to living their cozy, comfortable lives and, in a perverse way, actually have taken a liking to humanity. As such, since they're both good friends (despite supposedly being polar opposites, representing Good and Evil as they do), they decide to work together and keep an eye on the Antichrist, destined to be the son of a prominent American diplomat stationed in Britain, and thus ensure he grows up in a way that means he can never decide simply between Good and Evil and, therefore, postpone the end of the world.Good Omens
Unfortunately, Warlock, the child everyone thinksis the Anti-Christ is, in fact, a perfectly normal eleven-year-old boy. Owing to a bit of a switch-up at birth, the realAnti-Christ is in fact Adam Young, a charismatic and slightly otherworldly eleven-year-old who, despite being the harbinger of the Apocalypse, has lived a perfectly normal life as the son of typical English parents and, as a result, has no idea of his true powers. As Adam blissfully and naively uses his powers, creating around him the world of Just William (because he thinks that's what an English child's life shouldbe like), the race is on to find him—the Four Horsemen of the Apocalypse assemble and the incredibly accurate (yet so highly specific as to be useless) prophecies of Agnes Nutter, seventeenth-century prophetess, are rapidly coming true.
Agnes Nutter was a witch in the 17th century and the only truly accurate prophet to have ever lived. She wrote a book called The Nice and Accurate Prophecies of Agnes Nutter, Witch, a collection of prophecies that did not sell very well because they were unspectacular, cryptic and, ironically enough, all true. She, in fact, decided to publish it only so that she could receive a free copy as the author. There is only one copy of the book left, which belongs to her descendant Anathema Device. Agnes was burned at the stake by a mob (because that's what mobs did at that time); however, because she had foreseen her fiery end ("ye're tardy; I should have been aflame ten minutes since") and had packed 80 pounds of gunpowder and 40 pounds of roofing nails into her petticoats, everyone who participated in the burning was killed instantly.
In the end, Anathema teams up with Newton Pulsifer, the descendant of the man who initiated the burning of Agnes, to use the prophesies and find the Antichrist. Unfortunately, that is exactly what everyone else is trying to do, and time is running out.
Terry Pratchett&Neil Gaiman
Good Omens