There are many complex main tasks in "The Elder Scrolls 4: Remake", and if you don't pay attention to many places, you will waste a lot of time. The main tasks of the pilgrimage are one of them. After the battle of Kovac is over, go to the gate of the Iron Felt Castle, and the guards will come to you for a conversation.
How to do the main mission of the pilgrimage of the Elder Scrolls 4 Annihilation Remake Edition