Read it through once

Mr. Stryver had left them in the passages, to shoulder his way back to the robing-room. Another person, who had not joined the group, or interchanged a word with any one of them, but who had been leaning against the wall where its shadow was darkest, had silently strolled out after the rest, and had looked on until the coach drove away. He now stepped up to where Mr. Lorry and Mr. Darnay stood upon the pavement.