Giacomo Casanova how he had escaped from their prison. Of his three bachelor patrons, however, only Dandolo was still alive and Casanova was invited back to live with him. He received a small stipend from Dandolo and hoped to live from his writings, but that was not enough. He reluctantly became a spy again for Venice, paid by piece work, reporting on religion, morals, and commerce, most of it based on gossip and rumor he picked up from social contacts. He was disappointed. No financial opportunities of interest came about and few doors opened for him in society as in the past.
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,