Hello everyone, longtime lurker first time poster.
I am getting ready for my finals and in preparation have been working on Isaeus 6 "On the estate of Philoctemon". In my studies I noticed something strange in section 41
 εἰσελθοῦσαι δὲ κατέλαβον ἐκεῖνον μὲν ἔνδον ἔνδον κείμενον δευτεραῖον, ὡς ἔφασαν οἱ οἰκέται, τὰ δ᾽ ἐκ τῆς οἰκίας ἅπαντα ἐκπεφορημένα ὑπὸ τούτων. αἱ μὲν οὖν γυναῖκες, οἷον εἰκός, περὶ τὸν τετελευτηκότα ἦσαν: οὗτοι δὲ τοῖς ἀκολουθήσασι παραχρῆμα ἐπεδείκνυσαν τὰ ἔνδον ὡς εἶχε, καὶ τοὺς οἰκέτας πρῶτον ἠρώτων ἐναντίον τούτων ὅποι1 τετραμμένα εἴη τὰ χρήματα.
Now granted I've only been studying Greek for three years and this is my first Isaeus speech, but the repetition of ενδον ενδον just seems weird to me. I can't recall a single time I've seen Greek do this. Any ideas?