Human: Generate for a spooky scene inside the Guild with a foundation, brick, door, and black streaks. Assistant: 
Time has not been kind to the cornerstone room of the old Bards' Guild, as is evident by the vein-like cracks and discolorations to the aged brick foundation. Several long black streaks scar the floor at the west wall where a door might have stood -- a visible reminder and striking mystery as to the demise of the missing portal.