Why Ruins Frighten Us
There is a reason the gothic novel could not survive without its ruin. A whole and tended house implies order, intention, a present tense. A ruin implies the opposite: that intention has failed, that order is temporary, and that the present tense is a courtesy soon to be withdrawn.
We do not fear ruins because they are old. We fear them because they are honest. They show us, in stone, what time intends to do with everything we have built and loved.
The best horror understands this. It does not invent monsters so much as remove the scaffolding we use to ignore them. The ruin simply gets there first.