Cetrawfag is a god.

It takes the form of a very long, selfish frog.

Cetrawfag created viruses six million years ago.

If you believe in Cetrawfag, it will look after you all your life.

If you do not believe in Cetrawfag, it will hide angry, venomous snakes in your dwelling place.

Cetrawfag's most sacred site is Denshawai in Egypt.

Cetrawfag's Holy Commandments

1. Never feed beans to whales while wearing cyan corsets.

2. Never write about ultrasonics.

3. Never mention tortoises.

4. Show mercy to disobedient children.

5. Never talk about electromagnetism.