Do not feed dragons!

Many years ago, the last five dragon families were dependent on the elves and are now forced to live among them, obeying their will. The elves consider dragons to be slightly flawed and not quite reasonable, use them as labor and keep them on livestock. Dragons cannot leave - they constrained themselves in a word, violating which will lose the dragon hypostasis.
This would continue further, if a mutant did not appear in the air masonry - the Golden Dragon Ildor, who seems to be a word, and who, which seems to be able to return to the origins, lost dragon to his homeland Takaron.
Ildor could do it at any time ...
If the dragons kept only a word or only shackles.
If the drought had not collapsed on the elven possessions.
If the oldest dragons did not weave intrigues against everyone.
If the most crazy scientist Yerush Nylo, who was very interested in the golden dragon ... did not arrive at the elves