Rishe has kept a certain activity of hers secret from Arnold, but when he appears right in front of her, there's no escaping his notice. Later she learns that Michel believes Arnold fulfills every condition necessary to conduct a particular experiment.
haven't asked me what 
black powder is, have you?
لم تسأليني عن المسحوق الأسود، صحيح؟
was genau Schwarzpulver
denn sein könnte.
No me preguntaste qué es
la pólvora negra, ¿o sí?
No me has preguntado qué es
la pólvora negra, ¿verdad?
vous ne me demandez pas
ce qu’est la poudre noire ?
non mi hai chiesto cos'è la polvere nera, o sbaglio?
Não me perguntou
o que é pólvora negra.
даже не спросила, что такое порох.