Family Heirloom

Jewellery #1: Head to the eastern corner of Helheim, east of the Temple, to find this piece of jewellery hidden in the snow.

Jewellery #2: After burning brambles to reach a side path in Helheim, follow it to the end. Use blocks to climb to a weapon rack in the corner. Burn the brambles on the pillar here to dislodge the jewellery.

Jewellery #3: After climbing from the side path to the Bridge Keeper, you'll see a Shatter Crystal across a bridge to the south. Look under this bridge for brambles, burn them away to dislodge the jewellery, and climb back down the wall to collect it.

Jewellery #4: Return to Helheim with Atreus. Proceed along the bridge, destroying Shatter Crystals. Behind the third and final Shatter Crystal, you'll find the jewellery on the ground to the right.

Jewellery #5: Enter the Hidden Chamber and take the elevator down. Climb the stairs; the final piece of jewellery is behind a brazier to the left of the coffin.