"Join Patrick and Beth as they unravel the mysteries of the Imagination Station. The cousins travel to 1923 New York City, the home of Nikola Tesla, a quirky inventor. He has the knowledge to fix the damaged Imgination Stations. But can they get his help while keepig the machines' purpose a secret? Or will Tesla figure out how to alter time and change history? Meanwhile Patrick discovers an old friend - Eugene Meltsner - who has startling secrets of his own. Find out how loyal pigeon, a wild helicopter ride, and a mysterious photo all come together to save the future!"--Page 4 of cover.