The lab maintenance is finished and the system comes back online. The police come to the island, but the investigation has made no progress. At last, however, Saikawa solves the mystery of the locked room and prepares to confront the culprit.
During that one minute, the killer 
passed through the yellow door.
.خلال تلك الدقيقة، مرّ القاتل من خلال الباب الأصفر
Durante ese minuto,
Durante ese minuto,
Durante quel minuto,
il colpevole ha varcato la porta gialla.
Durante esse exato minuto, a assassina
passou por aquela porta amarela.