Can't Look Back

Can't Look Back is a quest in Legend of Mana.

Solution
Place the Frozen Heart AF to the space directly below the Bone Fortress to create Fieg Snowfields. Enter Fieg Snowfields.

Head to area 13 on the map. Next, listen to the conversion and talk to Mephianse at the campfire. Finally, proceed to area 18 to fight the boss (Du'Mere).