Detective Stanley and the Mystery at the Museum by Hannah Tunnicliffe & Erica HarrisonDetective Stanley and Mystery at the Museum by Hannah Tunnicliffe & Erica Harrison. Detective Stanley has barely sat down for his breakfast pancakes when he receives an invitation he cannot refuse. The Art Museum has been raided on the opening day of the Bleat Mondrian show and Stan has been called to investigate. The most perplexing thing about the case: Nothing has been stolen! But now Stanley finds himself in a tight spot even his powers of