Speak with Soothsayer An'tuul in Aurovan.
The Soothsayer An'tuul in Aurovan knows much that cannot be known. She sees what cannot be seen.
She can reach into your mind and draw the words you cannot find. She will inscribe these words on a crystal, for a price.
She can help you find out more about the Mudbone and why they would worship the Dark Serpent Grok. Find her.
You come for knowledge. You will need crystals. I sell what you need.