There's a new rider at Pine Hollow Stables. Her name is Tiffani, with an "i." Carole Hanson and Lisa Atwood think she's a good rider, but Stevie Lake can't get over her riding gear—pink and covered in lace and frills. Suddenly Stevie's in competition with Tiffani, determined to win at all costs—even if it means learning to jump fences while riding sidesaddle. Stevie's friends are convinced that she has lost her mind. But Stevie's determined to "out-girl" everyone. She's even bought a fluffy, pink sweater.