The Riddle of the Iron Fan

Theo Tan is going to another world. His brother Jamie is stranded in the spirit world, and Theo must help him. This time, it will not be Jamie rescuing his wayward brother, but Theo. However, entering another world is not easy. If there is a map, it is only approximate; where to search is unclear, and there are soul hunters lurking around every corner. And even to open the passage, many conditions must be met. Theo is not going to give up — he has a goal, and he will achieve it. Neither people nor spirits will be able to stop him.