Lots of Ghouls to face and they hit freaking hard. When facing the Cyclops just go inside the house and wait until the cyclops sticks it's head in there and stab the eye. Rinse and repeat until he falls dead.
If you're a warrior I'd recommend purging yourself in the church, because if you don't, you won't be able to wield the Sword of the Dragonclaw.
Almost at the last chapter. When you're going to turn the valve to start the water, kill the necromancer first.~
Hopefully, you've been saving your scrolls. For the Pao Kai, just use 1 or 2 sanctuary scrolls and use the ballista. If you don't have sanctuary scrolls, be sure to equip a Ring of the Phoenix before manning the ballista.