article_snippet.sent: Scroll down for audio .
article_snippet.sent: While giving directions, A 13-year-old Maryland boy said: 'Go up the steps right in the back hallways. '
article_snippet.sent: It's a black door to the right.'
article_snippet.sent: Assistant Fire Chief Alan Doubleday said: 'It was a heroic effort on The 25-year veteran part.
article_snippet.sent: even put It into words.'