Meitantei Conan: Pyramid kara no Chousenjou!

During a visit to the Mouri Detective Agency, the Detective Boys receive an airmail letter posted from Egypt by someone calling herself Cleopatra. Its message claims that a 4,500-year-old pharaoh's curse is about to awaken, and that disaster can be prevented only by solving seven pyramid-related riddles before time runs out.

With Kogorou in no condition to help, Ran joins Conan and the children as they attack one puzzle after another. What begins like an exotic challenge soon becomes a race against the clock, forcing the young detectives to combine observation, history, and quick thinking to uncover what lies behind the strange letter.