The captain of Ilya security, Augusque, sent armies to kill monsters in Echo Cave, explained Barriet.
The cave is considered dangerous, and no one's quite sure why the captain suddenly wants everyone to slaughter Draze, the monster boss in the northeastern area in the cave.
I'd love to slay it myself, but I'm pretty busy. You want to take a crack at it?
The Echo Cave is in the southeast of the Ancient Forest. Use the transporter stone to Ilya and walk east to find it.