Bob Petersen arrives with his daughter at the Middle Grade school in Maine where he teaches, expecting another regular day but worried about what recent ominous news reports might portend. Suddenly his school -- along with many others across the United States -- is under attack. Gunmen burst in, slaughtering children and adults alike. This novella by New York Times bestselling author William R. Forstchen imagines a horrifying scenario where, in the course of one day, the terrorist group ISIS carries out massacres in schools and on highways across the United States. With a surprisingly small but well-organized and ruthless force, the nightmarish devastation brings America to a state of near-paralysis. Author of One Second After and Pillar to the Sky, this heart-stopping novella brings home just how fragile our defenses and infrastructure really are. It is also a story of heroic efforts to save lives, while sounding a wake-up call to American citizens and their government. ...