The Dragonese is an ancient language employed by the Dragons. Its graphemes consist of a series of small impressions of dragon legs in different positions.
The Dragonese seems to be a forgotten language since none of the teachers of Luna Nova Academy is able to use it, not even Finnelan the Magic Linguistics professor. The House of Cavendish seems to be one of the few that preserve this language since Diana Cavendish mastered it at the age of twelve. It said the consume at least mini dragon's fangs can temporary bestow someone with the ability to read dragonese.