 After they leave the library, Xander emerges from behind the shelves, having overheard the strange conversation.That night, en route to her first visit to The Bronze, the cool hangout in Sunnydale, Buffy meets a mysterious, handsome stranger (David Boreanaz), who warns her that she is living on a Hellmouth that is about to open, and that "The Harvest" is coming.He also gives her a large silver cross pendant.