The Histories · 9.39

Eight days had now passed while they had been sitting opposite to one another, when he gave this counsel to Mardonios; and Mardonios, perceiving that the advice was good, sent the cavalry when night came on to the pass of Kithairon leading towards Plataia, which the Boeotians call the "Three Heads" and the Athenians the "Oak Heads." Having been thus sent, the cavalry did not come without effect, for they caught five hundred baggage-animals coming out into the plain, which were bearing provisions from Peloponnesus to the army, and also the men who accompanied the carts: and having taken this prize the Persians proceeded to slaughter them without sparing either beast or man; and when they were satiated with killing they surrounded the rest and drove them into the camp to Mardonios.

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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