In this picture book of Felix and Booboo collection, Felix wanted to bake cookies for his friend Sam. He had to be very careful as Sam is allergic to eggs, nuts and cow's milk. These ingredients insisted on being part of the recipe. Read this story to find out how Felix and his friends baked safe and delicious cookies for Sam. This story will reveal the secrets of food allergies. At the end of the book, there is a quiz challenging reader's reading skills.