Here is the full list of all 21 The Divine Speaker: The Sun and the Moon achievements.
Be guided by Lucius.
Have Aemyl end up all alone.
Follow through with Lucius' plan.
Give Raen his Judgement.
Remember Nicoli as The Divine Speaker, Lucius.
Meet a certain Goddess of Water.
Witness the end of Lucius' second life.
Have dinner with the King and Queen of Aurelia Cavella.
Discover the power that comes alongside consuming souls.
Learn about Lucius' ability as a soul seer.
Meet Veras as 'Nicoli'.
Wake up in a new body.
Witness Aemyl choosing his fate for himself.
Be given a room in Stagwich by Argo... for free this time, no performance required.
Reach Stagwich for the first time.
Witness the end of Lucius' first life.
Follow Caspian back out into the forest.
Meet Sid Caeham's God of Winter and witness Lucius' first life.
Meet the current Divine Speaker.
Catch sight of a little baby fox.
Seal your fate by leaving Aurelia Cavella.