He was obviously regarding Burton with a new interest.

During tea-time he conversed chiefly with Edith, who seemed a little nervous, and answered most of his questions with monosyllables.

Burton and the professor were silent.

Burton was watching Edith and the professor was watching Burton.

As soon as the meal was concluded, the professor rose to his feet.
"Edith, my dear," he said, "we wish you to leave us for a minute or two.
Mr.Bomford and I have something to say to Mr.Burton." Edith, with a slight shrug of the shoulders, rose to her feet.