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.
With his unspoken doubts 
still up in the air,
،ببقاء شكوكه غير المُعلَنة تلوح
Während dieser leise Verdacht
zwischen ihnen stand,
Con dudas latentes en el aire,
Con dudas latentes en el aire,
Malgré les doutes de son ami,
Pur con questo lieve sospetto nell'aria,
Com incertezas pairando no ar,
И в этой атмосфере сомнения