Why is this book not more widely appreciated?
Superbly written, brilliant in conception, thoroughly researched, and providing a slant on reality the like of which I have never encountered anywhere else, Black Easter is one of the greatest "science fiction" books ever written.
Black magic and Cold War angst combine in a blackly humorous account of wizard Theron Ware, ennui-ridden arms dealer Baines, spiritually hollow Jack Ginsberg and self-deluding enemy of Hell Father Domenico, who are all wrapped up in the insane commission that will trigger the end of the world.
Black Easter is of a piece with its sequel The Day After Judgement, in which the four cross the Earth in the aftermath of Hell's conquest of Heaven. The satire becomes much more overt here, as the surviving US military forces consider their strategic options. Should they propose an alliance with Hell, since it seems the clear victor in the final war?
Arguably Blish's masterpiece.