Saikawa and Nishinosono return to the camp, putting off trying to find a solution to the case. But they can't stop thinking about it. They go back to the lab and investigate Dr. Shiki's rooms again, where they find a strange number that is a clue.
When we answer all these questions,
،عندما نجيب عن كل هذه الأسئلة
Sobald wir alle
Rätsel gelöst haben,
Cuando podamos contestar esas 
preguntas, descubriremos...
Cuando podamos contestar esas 
preguntas, descubriremos...
Quand ces énigmes seront résolues,
Quando tutti i misteri saranno risolti,
Quando respondermos
 todas essas perguntas