The Svartalfheim Cipher Piece is a small, intricately designed artifact with a dark metallic base, adorned with glowing Norse runes that pulse with a faint blue light. Its shape is angular and asymmetrical, resembling a broken fragment of a larger tablet, with edges that appear both worn and sharply defined. The surface is heavily textured with ancient engravings and a slightly rough, weathered finish, suggesting its age and mystical origins.