Tyr's Vault (NC)

After transferring the winds of Hel in the second room with the wind trap, turn the gearwheel again to open the gates to two more tunnels. Unlike the spinning blades traps, the spike traps will instantly Kill you so be very careful. Before moving to the main tunnel, we have to explore the other tunnel first to the north first. In the end of the tunnel, there’s a nornir chest. To unlock it, you’ll have to find and destroy three seal stones. The seals locations are listed below.

In the gearwheel room, on a shelf near the tunnel with the spinning blades:

In the main tunnel with the spike traps from the ceiling. Look at the metal beams on the upper-right side.

The last seal is near the nornir chest itself. Head inside the tunnel and peek to the left to see a gear on the side of the second spike trap. Freeze it with your axe then time your movement as you cross the spike traps. Turn around to find the last seal behind the frozen spike trap. You can use your blades’ ranged attack to destroy it.