Fenvidsaw is a god.

It takes the form of a chunky, ill-tempered fish.

Fenvidsaw created dark matter two thousand years ago.

If you believe in Fenvidsaw, it will be shocked.

If you do not believe in Fenvidsaw, it will insist you be burnt at the stake.

Fenvidsaw's most sacred site is Auvillar in France.

Fenvidsaw's Holy Commandments

1. Never write about thermodynamics.

2. Show mercy to disobedient children.

3. Never hurt tapirs.

4. Ducks are not to be trusted.

5. Always help sick frogs.