Friday's Tunnel

John Verney is obviously writing far more for his own pleasure than for children and this is the way the best children’s books get written.”―Madeline L’Engle, New York Times

Twelve-year-old February Callendar and her older brother Friday are home from boarding school for the summer. For fun, Friday has been digging a tunnel through the backyard. When their father, a war correspondent, leaves to cover an international crisis, the siblings escape their mother and their tutor and get wrapped up in a crisis of their own. They can hardly believe it when their search for clues―including a suspicious plane crash, a mysterious mineral, and a comic strip with secret messages―leads right back to Friday’s tunnel and a chance to save the world during their summer vacation.