"Miniature rooms Juvenile fiction." . . "Field trips Juvenile fiction." . . "Children's audiobooks" . "Children's audiobooks"@en . "68 rooms" . "68 rooms"@en . . . . . . . . "Ruthie thinks nothing exciting will ever happen to her until her sixth-grade class visits the Art Institute of Chicago, where she and her best friend Jack discover a magic key that shrinks them to the size of gerbils and allows them to explore the Thorne Rooms--the collection of sixty-eight miniature rooms from various time periods and places--and discover their secrets." . "Ruthie thinks nothing exciting will ever happen to her until her sixth-grade class visits the Art Institute of Chicago, where she and her best friend Jack discover a magic key that shrinks them to the size of gerbils and allows them to explore the Thorne Rooms--the collection of sixty-eight miniature rooms from various time periods and places--and discover their secrets."@en . . "Audiobooks" . . . . . . . . . "Fiction" . "Fiction"@en . . "Juvenile works" . . "Juvenile works"@en . . . "The sixty-eight rooms" . "The sixty-eight rooms"@en . . . . . . . . . . . . . . "Downloadable audiobooks"@en . . . . . "Fantasy fiction" . "Art Institute of Chicago" . . "Magic Juvenile fiction." . . . .