First, be sure to stop by the shops and replenish your supplies. The Gnomish Bread really only shows you the world map, which isn't really worth 200 Gil. You might want to stock up on some Potions though. And magic? As before, you'll want everyone to have Fire, Blizzard, and Thunder minimum for offense. Poison and Aero are also good ideas. Remember, Cure and Aero are White Magic , so it gives your White Mage a chance to do damage rather than sit around every turn.
After you're done, stay at the Inn to heal any MP you may have used. Then head into the northwestern house. Zoom in with the camera and you'll be able to find four sparkles showing off Fira and Cura spells, and the Mythril Bracers and the Fire Staff . Nice haul! Put Fira and Cura on the person with the highest magic-based damage. The Fire Staff and Mythril Bracers won't affect anyone Minimized for now, so just hold onto them for now.
Speak with the doctor and he'll ask for an Antidote . Buy one if needed, then hand it to him to open up a secret pathway .