Tedd Deireadh, The Final Age is a main quest in The Witcher 3: Wild Hunt. This is the final main quest in the game. It begins automatically after “On Thin Ice.”

Tedd Deireadh Walkthrough

Yennefer has grabbed Geralt from the Naglfar and taken you back to the Nilfgaardian camp.

A portal is opening between the worlds at a distant tower. Avallac’h has taken Ciri and is using her to cause the worlds to collide. Run off with Yennefer, while dodging meteors. Giants and other monsters that will start teleporting nearby. Don’t worry about fighting them, just continue to run. Soon you will see two horses.

Hop on one of the horses and ride off with Yennefer toward the tower. Continue to dodge meteors and giants. Soon the White Frost will appear at the base of the cliffs. Hop off the horses and stay near Yennefer. She creates a shield to protect you both from the Frost. Two Hounds of the Wild Hunt will appear during your trek up the mountain. Stay in the bubble and slay them with blasts of Igni and sword slashes.

At the edge of the tower, Avallac’h has put up a giant barrier. Yennefer can only open a small door, big enough for one. When she opens the door, go in and walk to the tower. In the tower, Geralt will confront Avallac’h. From here, Avallac’h will toss his weapon aside and Ciri will come out. The elf means no harm and Ciri wants to destroy the White Frost forever. Talk to her as you wish and watch her go off. The consequences of your five critical decisions from “Blood on the Battlefield,” “Final Preparations,” and “Battle Preparations” come to fruition with Ciri as she faces the White Frost.

After the cutscene, the quest “Something Ends, Something Begins” will start. This quest plays out differently depending on the critical decisions you made for Ciri.