Which line in this excerpt from act i, scene i, of richard iii is a stage direction? richard iii (duke of gloucester): . . and if king edward be as true and just as i am subtle, false and treacherous, this day should clarence closely be mew'd up, about a prophecy, which says that 'g' of edward's heirs the murderer shall be. dive, thoughts, down to my soul: here clarence comes. (enter clarence, guarded, and brakenbury) brother, good day; what means this armed guard that waits upon your grace? george plantagenet (duke of clarence): his majesty tendering my person's safety, hath appointed this conduct to convey me to the tower. richard iii (duke of gloucester): upon what cause?