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.
The basement of that Western-style mansion
is the Third Laboratory.
إن قبو القصر ذي التصميم الغربي هو  
.المختبر الثالث
Forschungseinrichtung 3 befindet
sich im Untergeschoss des Hauses.
El sótano de la mansión
es el Tercer Laboratorio.
Le troisième labo est au sous-sol.
Il seminterrato di quella villa
è il Terzo Laboratorio.
O porão desta mansão é
o Terceiro Laboratório.