<P> Although it was believed that Horn Book never returned the chapter, Marvin Prune's chapter is actually available, but it has not yet been published . "The Children's - Delight Room" was reworked into "Spotty Powder". It is present in two versions . One features the workers from "The Vanilla Fudge Room" but also include "tiny whispery voices" who sing the songs after each child's exit, and Charlie with his mother and father . The second version features Grandpa Joe, Charlie's grandfather, who is present in the final book, and the Oompa - Loompas . In the version with the voices, the voices actually sing two songs, a two verse type one found in "The Vanilla Fudge Room", plus a longer one like the type that is found in the final book . Like Miranda, Marvin loves school and suffers the same fate as her--supposedly getting ground into powder . </P> <P> A fan of the book since childhood, film director Tim Burton wrote: "I responded to Charlie and the Chocolate Factory because it respected the fact that children can be adults ." In a 2006 list for the Royal Society of Literature, author J.K. Rowling (author of the Harry Potter books) named Charlie and the Chocolate Factory among her top ten books every child should read . </P> <P> A 2004 study found that it was a common read - aloud book for fourth - graders in schools in San Diego County, California . A 2012 survey by the University of Worcester determined that it was one of the most common books that UK adults had read as children, after Alice's Adventures in Wonderland, The Lion, the Witch and the Wardrobe, and The Wind in The Willows . </P> <P> Groups who have praised the book include: </P>

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