In these new mystery stories set in New York City, we will travel through time at different periods of the history of the city, from its foundation as New Amsterdam to our days. Stories include: - Captain Kidd's Treasure, that could be hidden somewhere on Manhattan, Long Island or Gardiner's Island; - The wreck of the HMS Hussar in the East River with a big treasure on board during the American Revolution; - The Leatherman, a mysterious vagabond who travelled constantly on the same 365 miles loop in Connecticut and New York for more than 30 years, coming back to the same towns every five weeks; -The disappearance of Judge Joseph Crater, a Supreme Court judge who vanished into thin air in shady circumstances, that illustrate the intense corruption of the 1920's and 30's; - The existence and sometimes rediscovery of many hidden underground structures, such as the pneumatic tube mail system, the City Hall subway station, the Atlantic Avenue Tunnel or the maze of tracks, platforms and rooms under Grand Central Terminal.