Sure, first-grade teacher Mrs. Watson may look human, but it is a known and proven fact that she is actually a three-hundred-year-old alien who steals baby teeth from her students. Thank goodness for a second grader's warning, because this little first grader has a secret: She has a loose tooth! Her first! How will she make it through an entire year without opening her mouth? Told with the same gentle wit as in their first irresistible collaboration, Countdown to Kindergarten, this lighthearted take on losing one's first tooth will have children and parents laughing aloud.