Einhard,
Early Lives of Charlemagne by Eginhard and the Monk of St Gall edited by Prof…
“ The horror of the dungeon seemed less than the bright gleam of iron. “Oh the iron! Woe for the iron!” was the confused cry that rose from the citizens. The strong walls shook at the sight of the iron; the resolution of young and old fell before the iron. Now when the truthful Otker saw in one swift glance all this which I, with stammering tongue and the voice of a child, have been clumsily explaining with rambling words, he said to Desiderius: “There is the Charles that you so much desired to see”: and when he had said this he fell to the ground half dead. ”
