This thread will out me to lots of RL people yeah, I'm on mumsnet, big deal, get over it, I'm still the harrassed mummy at the school gate but here goes.
We recently bought a massive house, unreasonably big (4500 square feet I think). In one of the rooms on the third floor was a small false window. That is a frame with a blind on it but with no actual glass just a board. Now from outside we could see a window high up on the wall but it appeared to be higher IYSWIM than the internal dimensions would suggest.
Anyway we got curious, drilled a hole and discovered a hidden room. Which we got the builders to check out, floor and insulate and which was plastered two weeks ago. We call it Narnia.
The room has five steps to access it because it's on a different level to the rest of the third floor (so we now have a fourth floor IYSWIM) - it's basically the roof space above the master bedroom which has a vaulted double height ceiling. It's 9X9 but it's a fab little room with a window and now a Velux.
I'm putting a single bed in there and it'll be an extra guest room.
But AIBU to insist that we get an old fashioned wooden wardrobe, take the back off and conceal the steps to Narnia inside it? Then put (vintage) fur coats in the wardrobe.
DH insists this is OTT but I think it'll be funny.
FWIW the entire house is OTT. Note to all mumsnetters, buy a country cottage, do it up and flog it for lots and you too can buy a big house in a city.