Synopsis

For an astronomical observation, Conan and the others made their way to a secluded pension nestled deep within the mountain. Besides the proprietor, there were three other occupants: the victim's fiancée and two members of a magazine staff. While venturing to a nearby hill to observe the stars, they discovered a set of decayed bones. Resting upon them was a final, desperate message. That night, one of the magazine staff members was found murdered, accompanied by another dying message.