Howard and Ivy return for a third adventure! Spring (musical) fever has hit the Grantleyville Middle School Drama Club—and Ivy has snagged a plum role in the play. Then, suspicious things start happening backstage: someone’s sabotaging the production! Howard quietly tries to sniff out the perp, but he’s soon framed as the saboteur. Can the team of intrepid P.I.s clear Howard’s name and catch the culprit before the big show?