Some would argue that he wants to somehow have Darius declare Alexander as the rightful Shah-in-Shah, king of Asia. And so you can see the path of Alexander and his forces. After they destroy Persepolis, they then go up, they turn northwards, and they go through all of these cities up here. And in 329, they're following the trail of Darius. Darius eventually gets captured and killed by one of his satraps, someone by the name of Bessus. And Bessus, who's one of the satraps of Bactria, kills Darius and declares himself Artaxerxes V. He wants to be the Shah-in-Shah. Well, eventually, Alexander catches up with Bessus in 329.