Blade of the Witch

"The year is 1943. Desperate to absolve his past mistakes, Joen, an American Pinkerton agent, is given an opportunity to redeem himself: rescue Matilde, a teenage girl with mysterious powers who was sent away to live in Agarthya, a hidden fantasy world that can only be accessed through portals. But when Zed, an evil necromancer and ruthless military ruler, discovers a passage to Agarthya and finds Matilde, whom he's been hunting for ever since she was a child, Joen and Matilde are forced to trust each other and must rely on a mysterious artifact called the Blade of the Witch, in order to survive against the onslaught of Zed and uncover a dark secret about their past and connection to Zed and Agarthya."