midnight
The Pope , I tell you , must protect us , since one of our objects is professed to be the assertion of the rights of St. Peter 's Chair in Venice . Prithee , Memmo , tease us no more with such doubts , but let Contarino 's proposal be adopted at once . Our confederates must be summoned to Parozzi 's palace with all diligence , and there furnished with such weapons as are necessary . Let the stroke of midnight be the signal for Contarino 's quitting the ball-room , and hastening to seize the arsenal . Salviati , who commands there , is in our interest , and will throw open the gates at the first summons . _ Falieri _ . -- The admiral Adorna , as soon as he hears the alarm-bell , will immediately lead his people to our assistance .