Since Juster did the cooking for the housemates, if Feiffer wanted to eat, he had to do the drawings. Feiffer quickly realized the book would require illustrations of the type and quality that John Tenniel had created for Lewis Carroll's "Alice's Adventures in Wonderland" and although a nationally known artist, doubted his competence to do the text justice. Feiffer considers the double-spread illustration of demons late in the book to be a success and one of his favorites. It differs from his usual style (which would involve a white background), and instead uses Gustave Doré's drawings as an inspiration.