Originally published under title: The snow friends. London : Gullane Children's Books, 2001. Originally published: without accompanying CD. London: Gullane Children's, 2001. Originally published: London : Gullane Children's Books, 2010 Originally published in hardcover: New York : Random House Children's Books, 2010 Originally published as Polar babies by Random House Children's Books, 2000. Originally published: London : Macmillan Childrens Books, 2004. Originally published as Wendel's workshop: Macmillan Children's Books, 2007 Originally published: Great Britain : Orion Childrens Books, 2004. Originally published: London : Macmillan Children's Books, 2005. Originally published under title: Spooky America : four real ghost stories, 2003.