Achievements:
Achievement - How to unlock
A final resting place - Find the nattramn's grave.
A winding path - Finish chapter 4.
An extended hand - Finish chapter 2.
Awakening - Finish chapter 1.
Beneath the surface - Finish chapter 3.
Dawn - Escape the cavern.
Folklorist - Complete the lore library.
Gate of promises - Finish chapter 5.
Into the darkness - Escape the eyrie.
Mystery carving - It's a secret to everybody.