Read it through once

On and on plodded the hansom, going slower, it seemed to him, at each step. He thrust up the trap and called to the man to drive faster. The hideous hunger for opium began to gnaw at him. His throat burned and his delicate hands twitched nervously together. He struck at the horse madly with his stick. The driver laughed and whipped up. He laughed in answer, and the man was silent.