"Players assume the role of Frank and Joe Hardy who have been invited onboard the Royal Express, an extravagant rail line traveling from Paris to St. Petersburg. Following the mysterious trail of the Romanov Family treasure, the Hardy Boys venture across a rich European landscape with stops at Vienna, Paris, Prague, and St. Petersburg. While onboard, players will search for hidden clues, explore the train cars, interrogate passengers and solve interactive puzzles as they attempt to discover what happened to the ‘lost’ treasure and unlock the century old secret of the Romanovs."