Daisuke locks Takei up in the basement of the Kambe residence. Cho-san interrogates him to find out who the mastermind is behind all of this, but Takei is shook with fear and refuses to speak. Daisuke discovers that the reason why HEUSC is being uncooperative is related to his parents’ research. Kato goes through the documents that Cho-san gathered in his 19 years of investigating the case and finds an important photo.
This is a tunnel for emergency evacuation.
It leads to the lake in the garden.
هذا نفق للإخلاء الطارئ
 .يؤدي إلى البحيرة في الحديقة
Das ist ein Evakuierungstunnel
für den Notfall.
Es un túnel de evacuación
de emergencia.
C’est un tunnel d’évacuation
relié à l’étang du jardin.
C'è un tunnel per le evacuazioni di emergenza.
Porta al lago in giardino.
Este é um túnel para evacuação de emergência.
Leva ao lago no jardim.