Here is the full list of all 52 The Divine Speaker achievements.
Be forcibly removed from Aurelia Cavella
Meet a certain blue haired man
Find out what marriage is from Fawn
Get involved in some unfortunate arson
Have Leos join you on your journey
Spend the night with Leos at the lake
Spend the night with Fawn at the lake
Reach Stagwich
Put on a show to stay the night
Meet a suspicious green haired man and his bird Veras
Hitch a ride with a certain saleswoman
Reach Oxhabor
Meet a flashy man in a seedy store
Let Cyne give you a special lesson
Give Cyne a kiss on the cheek
Follow Nox back to his manor
Let two mysterious men lay you down in your final resting place
Search through Nox's manor and live to tell the tale
Tell someone that you give up
Agree to the practical lesson
Find your way home
Help Soren with his demon problem
Learn Cyne's true name
Reach Sid Caeham
Get a winter outfit
Take Cyne as your date to the ball
Have dinner with your Mother-in-Law
Say no to Cyne
Meet Caspian in Sid Caeham
Let Cyne be alone, forever
Meet Morwen in person
Learn about Morwen's human life
Learn Aemyl's power
Approach Lucius in Sid Caeham
Reach Cyne's good ending
Learn how Illran and Veras met
See Illran and Veras' first kiss
Witness Illran and Veras' love
Reach Illran and Veras' happy ending
See Aemyl and Caspian make up
See your two dad's kissing
Break into the ball with Leos
Learn Leos' favorite food
Fall into a place that Leos will never reach you
Be saved by Leos, a long time in the past
Reach Leos' good ending
Attend the ball with Fawn
Meet someone that looks very similar to Fawn
Learn what Fawn keeps hidden
Witness Fawn choosing his new name
Let Fawn get his revenge
Reach Fawn's good ending