Half-Dragon unlocking-bug/or newbish question (spoiler )

[Leeshy]

I allready beat Dragon Isle with 4 different classes and I still don't have it. What did I do wrong?

[Gorgon]

When you completed it with the third class, did any message appear? If not, it means you didn't have the quest yet.

[Leeshy]

No message appeared.
I got no Quests left at the moment.
Where do I get that Quest?

[Gorgon]

As far as I know, you need the alchemist building to get the monster class quests. You can get him when you buy the philosopher stone at a shop and take it to the kingdom.

Don't worry, you won't have to complete the quest again after you get the quest

[Leeshy]

Thanks alot, allready had the Alchemist but didnt upgrade it