Karen and Andrew have a new baby-sitter -- Bart Taylor! Bart is so much fun. Every day he has a new adventure -- sledding, snow forts, and Winter Olympics. Karen likes Bart so much, she decides she has a crush on him. Then Bart asks Karen to come over to his house on Saturday to watch a video. Has Bart really asked her out on a date?Martin, Ann M. is the author of 'Karen's Baby-Sitter' with ISBN 9780590470452 and ISBN 0590470450.