The year is 1953. The Korean War is winding down. The Cold War is heating up. The United States detonated the first hydrogen bomb the year before. Godzilla will stomp into the theaters a year later. UFOs are making appearances all over the world. And in Ranpo Edogawa's latest novel, flying saucers zoom across the skies of Tokyo.
A day after that alarming incident, a woodsman stumbles out of the forest and reports the landing of an alien spacecraft in the mountains southwest of Tokyo. A month later, Ichiro Hirano's next-door neighbor goes missing. And then reappears as abruptly as he vanished, claiming he was kidnapped by a mysterious winged lizard creature.
That same lizard creature is now stalking Ichiro's own sister. Where did the space aliens come from? What do they hope to accomplish? These are the kind of questions that only master sleuth Kogoro Akechi and the Boy Detectives Club can hope to answer.