It had been only twenty-four hours since Mighty Casey struck out, plunging fans of the Mudville team into gloom and despair. But a new game day dawned, and Casey once again proved his might with a homer in the eighth. The Mudville nine took a one-run lead, but in the bottom of the ninth, their hurler walked three straight.

Bases loaded and the starting pitcher spent, the Mudville manager was not bullish about his bullpen. With the game on the line, he called for rookie Joy Armstrong to take the mound. Could she bring joy to Mudville again—and prove that a girl can play ball as well as any boy?