Meitantei Conan: Pyramid kara no Chousenjou!

Synopsis

The Detective Boys receive an airmail letter from Egypt, signed "Cleopatra." The sender warns of a reawakened pharaoh's curse and presents seven pyramid-themed riddles that must be solved quickly to avert disaster. With the detective unavailable, Ran steps in to help the children decipher the cryptic clues and embark on a race against time.