A cross-eyed baseball pitch. . . A missing penknife named Excalibur. . . Poems that pack a punch. . . A kid-lover tumed kidnapper. . . And some tall tales that come up short! These are just some of the ten brain-twisting mysteries that Encyclopedia Brown must solve by using his famous computerlike brain. Try to crack the cases along with him--the answers to all the mysteries are found in the back!