Heavy stone slab (150–300 lbs) forming a castle murder hole. Installed in gatehouse ceilings; defenders above drop rocks, oil, or arrows through it onto trapped attackers below. Removable for maintenance by 2–3 workers.
A thick granite slab looms overhead, its central hole gaping like a dark maw. Rough-hewn edges scrape fingers; iron pry-bars groan as the 250-pound block shifts, revealing the void ready to rain stones and scalding death below.