midnight
`` Yes ! '' resumed the Knight -- `` but let us walk on ; suffer me for a few moments to be your companion . Yes ! I have listened to you -- the other eve , when you addressed the populace , and today , when you rebuked the nobles ; and at midnight , too , not long since , when -LRB- your ear , fair Sir ! -- lower , it is a secret ! -RRB- -- at midnight , too , when you administered the oath of brotherhood to the bold conspirators , on the ruined Aventine ! '' As he concluded , the Knight drew himself aside to watch , upon Rienzi 's countenance , the effect which his words might produce .