Secret Passage

4. Secret Passage to the Depths. Grid Dimensions: Variable (Narrow corridor, 1x20+ squares, including stairwell sections). General Description: A dark, damp staircase spiraling down into the depths of the castle. The air is heavy, carrying a metallic and sulfuric scent. The sounds of the castle above fade away, replaced by an oppressive silence punctuated only by the constant dripping of water and, occasionally, a faint, distant moan. The walls are made of rough-hewn stone, covered in moss and slime in some sections. Map Elements: [A1] Upper Entrance: The entry point to the secret passage, accessible from the Portrait Chamber. [A2-A20] Spiral Staircase: Worn and slippery stone steps. [A5, A12, A18] Wall Niches: Small recesses in the wall. [A10] Pressure Trap: A step that triggers a trap if stepped on carelessly. [A20] Lower Exit: The door or opening leading to the Sacrificial Chambers in the catacombs.