Compose a narrative about a legendary mechanical scorpion named Kaelithrax, designed with intricate carvings and engravings in deep blue and gold. This elegant automaton was created by an ancient civilization to guard their most sacred treasures hidden within the vast, mysterious blue sands desert. Delve into Kaelithrax’s adventures as it uncovers a plot to steal the civilization's lost artifacts and must swiftly navigate through treacherous landscapes, solve ancient puzzles, and combat nefarious raiders using a blend of cunning intellect and mechanical prowess. Throughout this journey, Kaelithrax not only protects its charges but also discovers the true extent of its capabilities and the secrets of its own mystical creation