His curiosity respecting Mesopotamia was now satisfied; and as every day’s residence among the Ottomans only seemed more and more to inflame his hatred of that brutal race, he as much as possible hastened his departure from Bagdad, having now conceived the design of serving as a volunteer in the armies of Persia, at that period at war with Turkey, and of thus wreaking his vengeance upon the Osmanlees for the tyranny they exercised on all Christians within their power. Notwithstanding that war between the two countries had long been declared, the Pasha of Bagdad and the Persian authorities on the frontier continued openly to permit the passage of caravans; and thus, were he once safe out of Bagdad with his wife and treasures, there would be no difficulty in entering Persia. To effect this purpose he entered into an arrangement with a Persian muleteer, who was directed to obtain from the pasha a passport for himself and followers, with a charosh to conduct them to the extremity of the Turkish dominions. This being done, the Persian, according to agreement, left the city, and encamped at a short distance from the walls, where, as is the custom, he was visited by the officers of the custom-house; after which, Pietro caused the various individuals of his own small party to issue forth by various streets into the plain, while he himself, dressed as he used to be when riding out for amusement on the banks of the Tigris, quitted the town after sunset, and gained the place of encampment in safety.