Kristy and the Mystery Train

Ann Mathews Martin was born on August 12, 1955 in Princeton, New Jersey. She received a degree in elementary education and psychology from Smith College. She worked as a teacher, was an editor of children's books for both Bantam and Scholastic, and then became a full-time writer.

She is the author of several series including the Baby-sitters Club series, Baby-Sitters Little Sister series, California Diaries series, and Main Street series. Her other works include Ten Kids No Pets, Here Today, On Christmas Eve, and Rain Reign.

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