It seems that we are in the same situation. i've lost all my previous saves.
Therefore, i'm currently testing different mods. Maybe you've already played with, like Soulvizier, excellent but don't expect a deathless run if this is what you want
Now, testing Shadow Champions, a lot of fun and it gives a refreshing breath on this good old TQ.
is the poisoned spring cave near act 5 map ? i don't remember this.