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.
that I can't turn down once I hear it, right?
التي لا أستطيع رفضها فور سماعي لها، أليس كذلك؟
der man nachkommen muss,
wenn man sie erst gehört hat?
qu’on ne refuse pas
une fois entendue, c’est ça ?
che non potrò rifiutare
una volta ascoltata, vero?
eu não terei como recusar
 depois de ouvir, é?