Bum is a god.

He takes the form of an extremely fat, ill-tempered yak.

Bum created silver five thousand years ago.

If you believe in Bum, he will look after your home planet.

If you do not believe in Bum, he will try to impress you with trees.

Bum's most sacred site is Katballe in Denmark.

Bum's Holy Commandments

1. Always prostrate yourself in the presence of your elders.

2. Radishes are unclean and should not be eaten.

3. Never write about moons.

4. Always wear purple.

5. Put Bum first in all things.