Kyousuke has been arrested. Hagiwara Sakutarou, Nomura Kodou, and the others gather at the "milk hall," a small cafe serving European beverages and foods, to try to discover the truth of the situation. Each of the literary men unveil their deductions. Natsume Souseki introduces Akutagawa Ryuunosuke who also participates in the puzzle solving, but none of them come up with a deciding theory. As they ponder, a boy named Hirai Tarou steps forward. Hirai tells them that everything started two nights ago...
Tell them that Ishikawa 
will be bringing a guest.
أخبريهم أنَّ إيشيكاوا سيحضر معه ضيف
Sag einfach, dass Ishikawa
einen Gast mitbringt.
Précisez que j’arrive
avec un compagnon.
Di' che a momenti verrà Ishikawa,
accompagnato da qualcuno.
Diga que o Ishikawa vai
levar um convidado.
Скажи, что Исикава приведёт гостя.