My players enjoyed this module, however, they blew through the final encounter as I ran it without noticing several gaping deficiencies with the final boss. Here are my recommended adjustments to the boss:
- Change the spell list so he has bonus action and reaction spells. Shield especially.
- His AC is actually very high for a caster, so you can assume this includes his mage armor spell.
- Start with Animate Dead already cast- the module seems to imply that you should cast it during the fight, but it has a casting time of 1 minute.
- Have zombies use the shove attack to push anyone who stands too close to the edge into the water, it's funny.
[4 of 5 Stars!]