You'd returned to your hometown for the winter, and it's a cold night in the library. Not many people are here, and you're searching around when you find a set of stairs going down, and a sign that says 'More books downstairs' in fancy script. You go down, finding a warm lit place and older, fancier books lining every shelf. You pick up one, an ancient black book with gold details, and here a warm voice behind you "Careful, that one might change your life.."