Some case, Sir William was mentioning, lowering his voice.
1
Un caso importante, que Sir William estaba mencionando, bajando la voz.
Translated by marina 14300 4 months, 1 week ago
1
Algún caso, que Sir William estaba mencionando, bajando la voz.
Translated by marina 14300 4 months, 1 week ago

Discussion

'Some' sometimes has this meaning. I can't see any indication of this in the text.

by marina 4 months, 1 week ago

I think it means: an important case

by Boot2 4 months, 1 week ago