the first two, and does not require that you read the other two first.
It has more of a Lewis Carrol feel than the other two, and is
generally more coherent.
There is a scene in the book where somebody creates a large explosion
by tying a copy of 'Das Kapital' to a copy of 'Mein Kampf'. This is
quite clever, but it bothered me for two reasons:
1) Several months ago, I had the idea of generating explosions in a
magical land by tying opposing books to each other. Now, if I use
this in a story, it will look like I copied it.
2) Communism and Fascism are not opposites. They are almost
identical. The historical struggle between the two types of nations
was simply a contest between two gangs of power-mad dictators.
Both systems rely on the suppression of individual will and individual
liberty. Both of them are centered around the worship of the state,
the collective and the 'greater good'. Both of them are totalitarian;
all economic, social, and political decisions are made by a small
group of people in the government. Both of them lead inevitably to
secret police, detention camps, and zero respect for life, liberty,
individual dignity, and freedom of thought. Both of them create wars
and death on a massive scale.
If you really wanted to see an explosion, you would tie a copy of
'Atlas Shrugged' to a copy of The Koran.