At the first I was put into bonds; but was set at liberty afterward, and sent to accompany Titus when he came from Alexandria to the siege of Jerusalem; (49) during which time there was nothing done which escaped my knowledge; for what happened in the Roman camp I saw, and wrote down carefully; and what information the deserters brought [out of the city], I was the only man that understood them. (50) Afterward I got leisure at Rome; and when all my materials were prepared for that work, I made use