Read by David Tennant and published in audio for the first time.

Toothless was the truly unremarkable dragon of the truly extraordinary Viking Hero, Hiccup Horrendous Haddock III.

But it wasn't always like that ...

There was a time when Hiccup was finding it hard to be a Hero, while Toothless was finding it even harder to be a Hero's dragon. Being disobedient and cheeky is not as easy as it looks - here are Toothless's tips on how to train your Viking!

How to Train Your Viking was published in print as an exclusive short story for World Book Day 2006.