Stan Martin has missed the first practice, so he didn't get a uniform. Even worse, when he is on the field, his rival goes out of his way to make him look bad. How is he going to move up from the Falcons' second string to second base? Suddenly, Stan receives unsigned notes urging him to keep trying, and his dejection turns to curiosity. Who is sending them? Why does this mystery person care about him? Challenge at Second Base gives listeners a full scoreboard of surprise pitches and wild hits as Stan moves through the season searching for the source of the notes and the true meaning of sportsmanship. For over thirty years, Matt Christopher's scores of sports classics have attracted so many avid readers that they formed a fan club! Stories like Zero's Slider have introduced enthusiastic listeners to little leaguers who learn some of life's most important lessons on the baseball diamond.