On the outskirts of the city, there was a tall dark tower made of concrete. It was supposed to be an office building on par with those crowding the downtown, but with cheaper rent and more parking space. However, its construction was never finished -- the company responsible for building the tower went bankrupt, and the owner of the land it was built on never resold it, hopelessly waiting for an opportune moment to recoup their losses. As years passed, the chances of continuing the construction became slim, and the price of this lot of land, marked with the unfinished monstrosity, never rose. Almost a decade later, it was still abandoned, looming over its surroundings like a grey ziggurat. The tower was protected with a rusty wire fence, but getting in and out was no problem for local kids, street artists... and wayward wraiths.