A great host, you say? All Isengard is emptied. How many? ...
Theoden: A great host, you say?
Aragorn: All Isengard is emptied.
Theoden: How many?
Aragorn: Ten thousand strong at least.
Theoden: [astonished] Ten thousand?
Aragorn: It is an army bred for a single purpose, to destroy the world of men. They will be here by nightfall.
Theoden: Let them come.