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 consider who the killer could be,
،عندما نفكر من قد يكون القاتل
Um auf den Täter zu kommen,
Para intentar descubrir al asesino,
Para intentar descubrir al asesino,
Pour parvenir à trouver
le coupable de ces meurtres,
La prima cosa da considerare
riflettendo sul colpevole
Quando vamos pensar sobre quem 
pode ser o culpado, primeiramente,