Passage 10.23.2
καὶ οἱ μὲν ἐξέπληττόν τε τοὺς Κελτοὺς καὶ δέχεσθαι τοῖς ὠσὶ τὰ παραγγελλόμενα ἐκώλυον, τὰ δὲ ἐκ τοῦ οὐρανοῦ οὐκ ἐς ὅντινα κατασκήψαι μόνον ἀλλὰ καὶ τοὺς πλησίον καὶ αὐτοὺς ὁμοίως καὶ τὰ ὅπλα ἐξῆπτε. τά τε τῶν ἡρώων τηνικαῦτά σφισιν ἐφάνη φάσματα, ὁ Ὑπέροχος καὶ ὁ Λαόδοκός τε καὶ Πύρρος· οἱ δὲ καὶ τέταρτον Φύλακον ἐπιχώριον Δελφοῖς ἀπαριθμοῦσιν ἥρωα.
And they not only struck terror into the Celts and prevented them from hearing orders clearly, but also the lightning from heaven fell not just upon single individuals, but struck equally those nearby, and ignited both the men themselves and their armor. At this very moment, appearances of heroes became visible to them: Hyperochus, Laodocus, and Pyrrhus; some add also a fourth hero, Phylacus, a local figure of Delphi.