The castle is riddled with hidden passages and breakable walls that often conceal valuable items, rare souls, or even entire rooms. These are not always obvious, but there are some tell-tale signs:

- Visual Cues: Sometimes, a wall might have a slightly different texture, a crack, or a suspicious indentation.
- Sound Cues: Attacking a hidden wall often produces a distinct 'clink' sound, different from hitting a normal wall.
- Map Gaps: If your map shows an unexplored area adjacent to a seemingly solid wall, there's likely a hidden passage there.
- Enemy Placement: Occasionally, enemies might spawn in a way that suggests a hidden area nearby.
Make it a habit to attack suspicious walls, especially in dead-end rooms or areas where the map seems incomplete. The Ghost Soul (Enchant), which increases LCK, can also sometimes help in finding these secrets, though its primary use is for soul drops. Many of the game's best accessories and powerful weapons are found behind these hidden walls.