Dare you step into the shadows once again? Tom and his new friends from Beaufort’s School for Deceptive Arts are taken on a treasure-hunting trip to a private island in the Mediterranean once owned by the great villain himself, the Duke of Nimes. The Duke is said to have hidden a spectacular treasure in the warrens, tunnels and caves that pepper the island – as well as a terrifying weapon. Will Tom’s street-smarts keep him and his friends alive as they chase down the treasure? And who are the deadly double agents that are sabotaging everything? Trust no one. This is not a game.