Story Seed - The Vault

Image Source: http://chillay.deviantart.com/art/Environment-1-351810459

It seemed to rise from the gloom of the forest in mere steps.  One minute there was naught but the dim green twilight of the sun filtered by semi-opaque leaves, illuminating yet more trees, the occasional lichen covered rock, and furtive forest beasts.  Then suddenly the trees thinned and there was something rising from the earth, peeking out from the dirt and leave as surely as it peeked through the veil of unknowable time.  A structure of white metal and whiter synth...