The dark forest knows where it is, right? It is easy to know.
Dark forest → monastery gate → barracks → prison (first floor → second floor → third floor (seems to be three floors? )), then go to the inner cloister, enter the strange room with "ashes", and then enter the catacombs → the first floor → the second floor → the third floor → the fourth floor. Hey, hey, I'm so tired, typing word by word ... give me the best! !