<P> A follow - up to the book was planned, called Charlie in the White House . Charlie's family and Mr. Wonka are invited by President Gilligrass to have dinner at the White House, as thanks for rescuing the spacecraft from its attack by the Vermicious Knids . Dahl only wrote the first chapter, which is on display at the Roald Dahl Museum and Story Centre in Great Missenden . </P> <Ul> <Li> ISBN 0 - 394 - 82472 - 5 (hardcover, 1972) </Li> <Li> ISBN 0 - 394 - 92472 - X (library servings, 1972) </Li> <Li> ISBN 0 - 04 - 823106 - 1 (board book, 1973) </Li> <Li> ISBN 0 - 14 - 030755 - 9 (paperback, 1975) </Li> <Li> ISBN 0 - 14 - 032043 - 1 (paperback, 1986, illustrated by Michael Foreman) </Li> <Li> ISBN 0 - 14 - 032870 - X (paperback, 1988) </Li> <Li> ISBN 0 - 670 - 85249 - X (hardcover, 1995) </Li> <Li> ISBN 0 - 14 - 037155 - 9 (paperback, 1995) </Li> <Li> ISBN 0 - 14 - 038533 - 9 (paperback, 1997) </Li> <Li> ISBN 0 - 375 - 91525 - 7 (library binding, 2001) </Li> <Li> ISBN 0 - 14 - 131143 - 6 (paperback, 2001) </Li> <Li> ISBN 0 - 375 - 81525 - 2 (hardcover, 2001) </Li> <Li> ISBN 0 - 14 - 240412 - 8 (paperback, 2005) </Li> <Li> ISBN 0 - 141 - 80780 - 6 (audio CD read by Eric Idle) </Li> </Ul> <Li> ISBN 0 - 394 - 82472 - 5 (hardcover, 1972) </Li> <Li> ISBN 0 - 394 - 92472 - X (library servings, 1972) </Li>

Who are the main characters in charlie and the great glass elevator