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.
Those words whose meaning I don't know.
.تلك الكلمات التي لا أعرف معناها
Diese unverständlichen Worte.
cuyo significado no entiendo.
cuyo significado no entiendo.
Ces mots incompréhensibles…
La frase di cui non capisco il senso.
Aquelas palavras 
sem sentido algum.