Hello Mrs. Piggle-Wiggle (Mrs. Piggle-Wiggle, Bk. 4)

Mrs. Piggle-Wiggle loves children, healthy children. She has a big cupboard overflowing with magic pills and potions and appliances for curing them of bad habits. Like the powder that makes Phillip Carmody completely invisible when he shows off. Of the anti-slowpoke spray she uses to treat Harbin's extra-acute daydreaming disease. However unusual the problem, you can count on Mrs. Piggle-Wiggle for the answer! Ages 6 to 10.