Gr 4-7-This story by British author Justin Richards involves four children in pre-World War II England who solve mysteries as "The Invisible Detective," whose face is never seen. Fourteen-year-old Arthur is a modern boy who enters a strange shop one day where he is given an antique casebook dated 1936 belonging to the Invisible Detective. However, he's stunned to find it is written in his own handwriting. Art, back in the 1930's, has three friends with whom he created the Invisible Detective: abused teenager Meg, bullied Johnny, and a young homeless girl named Finch. They solve a mystery by finding a missing boy and then stumble into a larger and much more serious mystery involving a number of people who have disappeared from London. Could the fact that when they return they walk oddly and have rather blank expressions have anything to do with Professor Bessamer's Paranormal Puppets? The novel borrows many typical elements of English procedural mysteries, but the numerous time shifts will confuse listeners. Art/Arthur and his friends are interesting characters although relatively undeveloped in the plot-driven tale. Glen McCready, an English actor, is a superb reader. His narration is expressive and dramatic, his pacing is perfect, and he does a good job with a number of different accents. The constant time shifts and the assumption of listeners' knowledge of British history will limit the audiobook's appeal.-B. Allison Gray, John Jermain Memorial Library, Sag Harbor, NY Copyright 2005 Reed Business Information.