Roald Dahl: George's Marvellous Medicine, illustrated by Quentin Blake
George Kranky's Grandma is a miserable grouch. George really hates that horrid old witchy woman. One Saturday morning, George is in charge of giving Grandma her medicine. So-ho! Ah-ha! Ho-hum! George knows exactly what to do. A magic medicine it will be. One that will either cure her completely or blow off the top of her head.