Battle Above the God's Eye

“And it was then, the tales tell us, that Prince Daemon Targaryen swung a leg over his saddle and leapt from one dragon to the other. In his hand was Dark Sister, the sword of Queen Visenya. As Aemond One-Eye looked up in terror, fumbling with the chains that bound him to his saddle, Daemon ripped off his nephew’s helm and drove the sword down into his blind eye, so hard the point came out the back of the young prince’s throat.”-Fire and Blood, pg. 502