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.
It's been a long time, Saikawa-sensei.
.مضى وقتٌ طويل يا سايكاوا-سينسي
Lange nicht gesehen,
Professor Saikawa.
Cuánto tiempo, Saikawa-sensei.
Cuánto tiempo, profesor Saikawa.
Ça faisait longtemps,
monsieur Saikawa.
Quanto tempo, professor Saikawa.
Faz muito tempo que não 
nos vemos, não é, Saikawa-sensei?