Chamber in the residence of Piccolomini: OCTAVIO PICCOLOMINI (attired for travelling), an ADJUTANT. OCTAVIO. Is the detachment here? ADJUTANT. It waits below. OCTAVIO. And are the soldiers trusty, adjutant? Say, from what regiment hast thou chosen them? ADJUTANT. From Tiefenbach's. OCTAVIO. That regiment is loyal, Keep them in silence in the inner court, Unseen by all, and when the signal peals Then close the doors, keep watch upon the house. And all ye meet be instantly arrested.   [Exit ADJUTANT. I hope indeed I shall not need their service, So certain feel I of my well-laid plans; But when an empire's safety is at stake 'Twere better too much caution than too little.