After saying that, Brain moved to the front and walked down the stairs. Just in case, he advanced one step at a time while prodding the ground in front of him with his katana. Climb followed him from behind.
At the bottom of the stairway, the ground and even the walls were lined with hard rocks. A few meters ahead, they saw a wooden door with its edges reinforced with steel.
Although it was difficult to imagine that they would place a trap at the level of the crossbow in the passage with the emergency exit, it was common for heavily armed warriors to be incapacitated by a single floor trap. That had to be avoided at all costs.