The Libation Bearers
Oh, the torment bred in the race (the fear and evil of Voldemort?), the grinding scream of death and the stroke that hits the vein, the hemorrhage none can staunch, the grief, the curse no man can bear. (Harry's grief and guilt for the lives of his friends?)
But there is a cure in the house and not outside it, no, not from others but from them, their bloody strife. We sign to you, dark gods beneath the earth.
Now hear, you blissful powers underground - answer the call, send help. Bless the children, give them triumph now. (the courage James, Lily, Sirius, etc. gave Harry in his walk to death?, the clues Dumbledore left behind?)

Aeschylus