He prepared then the greatest armament that the world had seen, and when all was ready he sounded his trumpets and set sail; and he broke the Ban of the Valar, going with war to wrest everlasting life from the Lords of the West. But when Ar-Pharazôn set foot upon the shores of Aman the Blessed, the Valar laid down their Guardianship and called upon the One, and the world was changed. Numenor was thrown down and swallowed in the Sea, and the undying Lands were removed for ever from the circles of the world. So ended the glory of Númenor.

p. 280