Read it through once

On this hint we all rose to depart. Before we got to the street door, Startop was cheerily calling Drummle “old boy,” as if nothing had happened. But the old boy was so far from responding, that he would not even walk to Hammersmith on the same side of the way; so Herbert and I, who remained in town, saw them going down the street on opposite sides; Startop leading, and Drummle lagging behind in the shadow of the houses, much as he was wont to follow in his boat.