A few things on this quest I have observed that I think are not as intended:
1. The pyromancers do not take any hostile actions they just stand there.
2. All other mobs except pyromancers provide no experience to any level player.
3. The end boss is the same as the pyromancers and doesn't take any actions.
4. Most rooms you enter you get mobbed straight away on the transitions making it exceptionally dangerous.
5. Some of the loot items have spells on with no charges (One example I think is called the flaming crown).
Most of this should be fixed; the AI bug is proving more persistent but we're working on it.