A death by inches.
Here's my tip:
- Clear the dungeon without clicking on any curios (also, make sure not to have any compulsive, curious quirks in your party 'cause they'll open all sorts of shit against your will)
- Don't use food to heal
- Don't use healers to heal unless there's just 1 enemy remaining
- On the final battle (or estimated final battle), snuff out the torch
- Make your way back through the dungeon in pitch black, all curios will now yield extra loot and heirlooms.
... and for god's sake don't put your torch to the red orb curio unless you want a bad time.