As Main and Lutz begin making their paper for real, Main's excitement gets the better of her, and Lutz's suspicions come to a head. He resolves to talk about it after the paper is finished.
Be sure to lock up and 
return the key every day.
احرصا على القفلِ وإعادةِ المفتاح كلّ يوم
Bringt bitte den Schlüssel stets zurück
zum Laden, nachdem ihr abschließt.
Procuren cerrar y entregarnos
la llave todos los días.
No olvidéis cerrar y devolvernos
la llave todos los días.
Vous nous la rapporterez
quand vous aurez fini.
Dopo aver chiuso,
riportatela sempre e comunque in negozio.
Vocês terão que trancar o lugar
e devolver a chave todos os dias.
Не забывайте запирать её
 и возвращать ключ.