After finding a mysterious stone and an old casebook, fourteen-year-old Arthur finds himself remembering the 1936 adventures of a boy named Art who, under the identity of the Invisible Detective, works with three friends in London to solve the mystery of sinister puppets who are replacing real people.
- ISBN10 0399243135
- ISBN13 9780399243134
- Publish Date 1 May 2005 (first published 1 January 2005)
- Publish Status Out of Print
- Out of Print 16 June 2021
- Publish Country US
- Imprint Putnam Publishing Group
- Format Hardcover
- Pages 204
- Language English