An early chapter book from Newbery Medal winner Betsy Byars When Boo brings home a dinosaur that only she can see, her brother Sammy, doesn't want to encourage her antics. Boo and her dinosaur are inseparable until Boo says good-bye to the dino quite suddenly. When Sammy sees how sad his sister is, he understands Boo's need for her dinosaur more than he wants to admit. So much so that he almost believes it . . . almost. Betsy Byars has written many chapter books, including "Little Horse" and "Little Horse on His Own." Her language, perfectly tailored to beginning readers, combines with Erik Brooks's charming illustrations to make a delightful book for children who are just starting to read.