Book excerpt: The Screech Owls have come to the southern city of San Antonio, Texas, a surprising hotbed of American ice hockey. They are here to compete in the San Antonio Peewee Invitational, and between games can explore the fascinating canals that twist and turn through a maze of shops and restaurants in the city's downtown. The tournament has been set up to include guided tours of the Alamo, the world's most famous fort, and for one night the championship team will even get to camp out in the historic site. The Screech Owls discover that the Alamo is America's greatest symbol of courage and freedom, and when Travis and his friends uncover a plot to destroy it, they must call upon all the courage of the fort's original defenders.