The Valentine's Day Mystery Author:Marion M. Markham Kate Dixon, scientist-to-be, and her twin sister Mickey, detective-to-be, team up once again, this time to discover what happened to a garnet pin lost at a Valentine's Day party. "Interesting characters and an engaging, solvable mystery combined with inviting large-size print and generous illustrations will make this a popular choice for readers... more » ready and reaching for chapter books." -- Booklist« less