Solasta: Crown of the Magister

For this achievement you need to escape Caer Lem with Beryl. Caer Lem is very early in the story. After 2 fights you'll find the 4 people you're looking for. Talk to everyone and then you'll be told to talk to everyone again. Make a save and talk to Daliat, pass a check to get him to tell you what happened. A lizard will appear, beat it down and after some scenes you'll be in a cave and this will unlock. If you passed the check with Daliat you'll get the achievement for him too.