Nishani was concentrating too hard to notice him when he entered.
He was concentrating on turning pages and recording things she was unable to read.
She willed herself there, concentrating hard to keep from losing the connection.
It was mid-afternoon already, another day wasted with the Council rather than concentrating on preparing for battle.
The American "essence of spruce," occasionally used in England for making spruce-beer, is obtained by boiling the shoots and buds and concentrating the decoction.