Celtic Sorcery Charm for Resolving Difficulties. Nidhogg the Viking serpent of immortality thrives in the dark underworld of Niflhelm. This pendant is reputed to bestow upon the wearer the ability to resolve difficulties and to Survive and Triumph through Troubled Times. Produced in lead-free polished pewter, enhanced with Swarovski crystals and provided with a 20" chain. Approximate size: 2" x 1".