two o'clock
Shall I have a cab called ? '' `` I 'd prefer to walk , for this affair has flurried me rather . '' `` I 'll join you in a walk , with pleasure , '' said his companion . `` Then we meet again at two o'clock . Au revoir , and good-morning ! '' We heard the steps of our visitors descend the stair and the bang of the front door . In an instant Holmes had changed from the languid dreamer to the man of action .