Thanks to the new rules, Aislinn was performing like a tank, but by level 115, he had to retreat home and replenish his mana to 60 to break through the block at the gold mine and reach the Necropolis.
Then he switched to a Necromancer, converting everyone into skeletons. The setup was such that a quick encounter wasn't possible.
For the final battle, Ayden arrived well-leveled with 330 mana; armor was useless, but he only had the magic missile spell. Against 490 ground skeletons, the magic missile wasn't effective.