La casa dell'alchimista

What dangers and puzzles are hidden inside pirate Raphael Ténèbres’ gloomy mansion, long abandoned in the middle of the Louisiana marshes? Who dares to go inside, like Gaston Lagrange’s men, could die of a horrible death... Meanwhile, in the insidious maze of channels that Tex, Carson and Nat Mac Kennet entered, the unknown killer with his Choctaw hit-men is getting ready for a deadly ambush...