Addiction Walkthrough guide

・Speak with Duke Thadon and then to his steward, Wide-Eye.
・Enter Dunroot Barrow using the Felldew.
Felldew can be obtained from Elytra.
・Once you enter, make sure to get as much Felldew as you can. You will need to consume some to enter the Barrier Membranes. You will start to have an addiction (Yes, I said the title.)
・Retrieve the Chalice of Reversal at the tower.
・Deliver the chalice to Thadon.