This guide shows the location of all Nornir Chests and how to solve the puzzles to open these chests in the Myrkr Tunnels area of God of War Ragnarok.
1) Myrkr Tunnels Nornir Chest Puzzle Solution
The location of the Nornir chest is shown in the picture below. You will reach there by crouching through the hole in the wall (See the second picture below) in the room where you have to solve the water puzzle during the Forging Destiny main story mission. To unlock the Nornir chest, you need to ignite the torch above three seals.
The first torch is in front of the Nornir chest as shown in the picture below. Pres L2+R2 to ignite the torch. The second torch is behind some crates in the same hallway as the previous one as shown in the second picture below. Break the crates and then ignite the torch.
The third and final torch is on the left side of the chest. This torch cannot be ignited with your blade. Hit the barrel next to the torch and it will spill some oil on the ground as shown in the picture below. Now shoot a few purple arrows in the area and hit them with your blade. this will ignite the oil and the torch. This will unlock the chest. Open it to get an Idunn Apple.