The Helheim Cipher Piece is a fragment of an ancient, mystical artifact, intricately carved with runes and symbols from Norse mythology. Its surface is made of a dark, weathered stone with a slightly metallic sheen, suggesting it was once part of a larger, more ornate structure. The edges are jagged and irregular, as if broken from a greater whole, with faint glowing blue etchings that pulse softly, hinting at its magical properties.