The sun-dial was thus _under_ the acropolis, that is, in the low ground immediately adjoining to Ortygia; near the place where the elder Dionysius is stated to have placed his large porticos and market-house (Diodor. xiv. 7), and where the younger Dionysius erected the funeral monument to his father (xv. 74). In order to arrive at the sun-dial, Dion must have descended from the height of Achradina. Now Plutarch mentions that Dion _went up_ through Achradina (ἀνῄει διὰ τῆς Ἀχραδινῆς). It is plain that he must have come down again from Achradina, though Plutarch does not specially mention it. And if he brought his men close under the walls of the enemy’s garrison, this can hardly have been for any other reason than that which I have assigned in the text. Plutarch indicates the separate localities with tolerable clearness, but he does not give a perspicuous description of the whole march. Thus, he says that Dion, “wishing to harangue the people himself, _went up_ through Achradina,” (Βουλόμενος δὲ καὶ δι᾽ ἑαυτοῦ προσαγορεῦσαι τοὺς ἀνθρώπους, ἀνῄει διὰ τῆς Ἀχραδινῆς), while the place from which Dion did harangue the people, was _down under_ the acropolis of Ortygia. Diodorus is still less clear about the localities, nor does he say anything about the sun-dial or the exact spot from whence Dion spoke, though he mentions the march of Dion through Achradina. It seems probable that what Plutarch calls τὰ πεντάπυλα are the same as what Diodorus (xv. 74) indicates in the words ταῖς βασιλικαῖς καλουμέναις πύλαις.