The Roman law is perfectly silent with regard to them.
It was perfectly silent on the street, neither of them feeling the urge to speak.
At the end of it he was perfectly silent for a long minute.
I stepped across the hall and let myself into their room, perfectly silent.
The animals were perfectly silent and would remain so now; they knew the enemy was close.
Their world was perfectly silent except for the whisper of the fire.
He was perfectly silent, and in the dusk his face looked completely white.
And then, she sat perfectly silent for what seemed an eternity.
His two friends looked on, without knowing what he was about, but they kept perfectly silent.
Mother was perfectly silent a long while, looking at me.