Ps. Plutarch, Parallela Minora 35, 314C
“When the Spartans were suffering a plague, the god prophesied that they could stop it if they sacrificed a highborn virgin every year. Helen was then selected by lot. When she was being led forward all adorned for the purpose, an eagle flew down, stole away the sword, carried it to the cattle and dropped it on a heifer. For this reason, they stopped the practice of virgin sacrifice.
That’s the story Aristodemos tells in his third Collection of Myth.”
λοιμοῦ κατασχόντος Λακεδαίμονα, ἔχρησεν ὁ θεὸς παύσασθαι, ἐὰν παρθένον εὐγενῆ κατ᾽ ἔτος θύσωσιν. ῾Ελένης δέ ποτε κληρωθείσης καὶ προαχθείσης κεκοσμημένης, ἀετὸς καταπτὰς ἥρπασε τὸ ξίφος καὶ ἐς τὰ βουκόλια κομίσας ἐπὶ δάμαλιν κατέθηκεν· ὅθεν ἀπέσχοντο τῆς παρθενοκτονίας· ὡς ᾽Αριστόδημος ἐν τρίτηι Μυθικῆι Συναγωγῆι.
Schol. To Aristophanes’ Knights 84b
“When the Athenians were enduring a plague, the god prophesied to them that they should bring back the bones of Themistokles. After the Magnesians did not agree to this, the Athenians asked to spend thirty days sacrificing at his grave. Once they set up camp at the spot, they secretly dug up his bones and took them home.”
λοιμωξάντων δὲ ᾽Αθηναίων, ὁ θεὸς εἶπε μετάγειν τὰ ὀστᾶ Θεμιστοκλέους. Μαγνήτων δὲ μὴ συγχωρούντων ᾐτήσαντο ἐπὶ τριάκοντα ἡμέραις ἐναγίσαι τῷ τάφῳ, καὶ περισκηνώσαντες τὸ χωρίον λάθρα κομίζουσιν ἀνορύξαντες τὰ ὀστᾶ.