"Dad's Secret Door" purports to describe the discovery of a hidden underground passageway. Apparently it connects the family house with a nearby church (like Castle of Otranto).
It begins with a trick door:
...which leads to tunnels and passageways...
Things get darker, as you might expect:
Then darker still - what the:
Even better, a recent development:
[the tunnel] has been blocked off by a new wall my dad had put in half way, so we own half now lol. we have found another passage way but you lift up a slate in the floor and the room is huge but flooded
A dark, underground, flooded chamber. What could be there, eh Infocult readers?