Tom Bombadil has brought you to the barrow named Othrongroth. A servant of the Nazgûl, Andraste, said that the Lord of the Nazgûl would be found here.
The entrance to Othrongroth is nearby to the west.
Tom Bombadil led you safely to the entrance of Othrongroth, the Great Barrow, in the Barrow-downs. Your search for the Witch-king will lead you into the barrow.
The Witch-king and the dwarf Skorgrím have entered Othrongroth. You should follow them into the barrow and search for them there.
Your path through the Great Barrow led you to the Black Rider, who took notice of your presence and called the Dead to attack you. Defeat these creatures and continue on through Othrongroth!
Your pursuit of the Witch-king has led you to a room with a wight seated upon a great throne. The creature bid you welcome and said that if you sought an audience, you could approach.
Thanks to the arrival of Tom Bombadil, the Wight-lord has been defeated! Tom waits to speak with you.