Lobo tiene dolor de tripa, el médico lo examina.-Pero, ¡si no comí nada! -dice ofendido-. Tal vez... ¿unas cuantas hadas?-¿Y ese barullo? ¡Si son los tres cerditos! ¿Y estas abuelas de dónde salen...?El médico se sorprende con toda la tropa.¡Levanta las solapas para desvelar quién se esconde en su enorme barriga!Once upon a time there was a Bad Wolf who was feeling belly pain without having eaten nothing. That's what he said to the Doctor.... But don't feel pity on him. Discover why his stomach hurts so badly behind every flap. Readers will find fairies, grandmas, little pigs, kids and all the Little Red Riding Hood the Bad Wolf had eaten? A tribute to fairy tales filled withloads of humor to introduce children into the world of lift-the-flap books.