The Puzzle at Pineview School — Carolyn Keene

NANCY MATCHES WITS WITH THE GREAT PINEVIEW JEWEL THIEF

With George as assistant coach, the all-girl Pineview soccer team has earned the right to compete for the prestigious Canadian Cup. But a valuable pair of brooches that were going to be sold to benefit the team have been replaced with fakes. The scandal rocks Pineview -- and puts the team's future in peril!

The game is now in Nancy's hands. She accompanies the team to the Niagara Falls tournament site, where she finds danger at every turn. Crime has taken the field, and time is running short. Her goal is to bag the jewel thief before the thief bags the cash -- and brings disgrace down on Pineview!