The feared end of the world comes in the most comical way imaginable with an ice-nine victim sliding down a broken castle parapet into the ocean. But that is the power of Vonnegut because the point he is making is that the end of the world could come as a result of idiocy. In fact it is almost inevitable if you give power hungry amateurs the power to destroy the world then they will potentially do so without even thinking about the consequences.
Although this would have no doubt have been read differently at the height of the cold war when not only was the end of the world possible but also seems likely with Cuba, Kennedy being shot and the Russians up to all sorts. But there is also a flip here about the fact that this is science fiction with the made up religion and the island republic in the Caribbean but at the same time it is satire. What makes it so readable is the humour. Despite the doom and even the death this is all done with a wicked smile. I guess you have that choice of either laughing or smiling and maybe doing the latter is the best thing to do, even in the face of total destruction.
A review will follow soon...