In make-believe play with his big brother and sister, Lewis always gets the bit parts (he's the baby to their father and mother, the patient to their doctor and nurse)--until he spies a lion in the comer of the attic. . . which turns out to be a lion suit. . . which Lewis puts on, to terrify his domineering siblings and claim the king's role they've denied him. Echoes of Sendak, in the pictures and the text (""And Lewis pummeled and pounded and thumped and bumped inside the lion""), only emphasize what a contrived and superficial trifle this is.