The Basketball Mystery — Gertrude Chandler Warner

One warm night four children stood in front of a bakery. No one knew them. No one knew where they had come from.

Henry, Jessie, Violet, and Benny used to live alone in a boxcar. Now they have a home with their grandfather, and they are playing in a community basketball league.

The Aldens are thrilled that Buzz and Tipper Nettleton, Greenfield's most famous basketball stars, are coaching their teams. But some of the other coaches don't seem so happy to see the Nettletons. Then Tipper's Most - Valuable Player trophy is missing, and Buzz's practice schedules get mixed up. Is somebody trying to foul up the community league? It looks like it's time for the Aldens to solve another mystery!