Ram is older than Salim.

Salim is older than Jamal.

The creation of the second Earth is suspended indefinitely. The main characters escape Magrathea one way or another, and eventually end up at the Restaurant without restoring the Earth.

Earth is restored completely back to normal and then the main characters set off for the Restaurant at the End of the Universe.

Jake smokes and drinks

Jake doesn`t smoke or drink

Percy fights with a celestial bronze knife.

Carl Lee in the book fires and rehires Jake

This doesnt happen

The trip through the airport goes off without a hitch.

There are several roadblocks along the way. They are stopped by guards and someone has to speak Farsi to get them through.

Hennessy confronts Sean about his affair with Mary and deduces that Mary leaked information to McGrath about the bombings and change in the code words. Hennessy and Morrison beat McGrath until he reveals the names of the bombers; they then murder and bury him in the field. Bromley does not find out it was McGrath that ordered the bombings.

British police identify O'Reily as the bomber. Bromley tells Hennessy the McGrath is the mole. Soldiers are on the way to arrest McGrath at Hennessy's farm. Hennessy agrees to question McGrath himself. He tortures McGrath with his pistol, obtains the bomber's names then murders him so the police can't arrest him.

The story takes place in the seventies.

It is in the current day.

Shears is the leader of the commando group.

He is not the leader, although he does lead when Warden is injured.

Hammond is killed by compys.

Hammond does not die.