Before they know it, the kids are mixed up in an adventurous mystery where clues require them to use their best Science, Technology, Engineering and Math (STEM) skills to find the answers Mystery books have always been a great higher-order, critical thinking genre, and the "real Kid characters" in this series eagerly get into using high-demand STEM skills to solve each mystery Additionally, each book has a great STEM section in the back with extra information on the science, math, technology, and problem-solving skills that are in the story, plus an extensive glossary, animal facts, and more Who knew learning could be so fun?