Macbeth in Dunsinane speaks confidently about withstanding a siege in the fortified castle. His enemies risk famine and ague. Macbeth hears is a shrill cry. He finds out devastating news. His wife has died. He philosophizes about all his days only point the way to "dusty death." While caught in the somber mood, he hears more devastating news. A sentry reports that Birnam wood appears to be itself moving to Dunsinane. The sentry does not realize that he has seen camouflaged soldiers. Macbeth now is truly alarmed- for.....