Giacomo Casanova and sister Maria Maddalena were living. His new play, "La Moluccheide", now lost, was performed at the Royal Theatre, where his mother often played in lead roles. He then visited Prague and Vienna, where the tighter moral atmosphere of the latter city was not to his liking. He finally returned to Venice in 1753. In Venice, Casanova resumed his escapades, picking up many enemies and gaining the greater attention of the Venetian inquisitors. His police record became a lengthening list of reported blasphemies, seductions, fights, and public controversy. A state spy, Giovanni Manucci, was employed to draw out Casanova's knowledge
Giacomo Casanova was again called to help increase the state treasury. He was entrusted with a mission of selling state bonds in Amsterdam, Holland being the financial center of Europe at the time. He succeeded in selling the bonds at only an 8% discount, and the following year was rich enough to found a silk manufactory with his earnings. The French government even offered him a title and a pension if he would become a French citizen and work on behalf of the finance ministry, but he declined, perhaps because it would frustrate his "Wanderlust". Casanova had reached his peak of fortune,