Pentacle of Shadows

From publisher blurb: PENTACLE of SHADOWS!! Humanity lives in a world filled with light and herosim. But, unknown to all but a few, there lies an another world that comes out when its dark, filled with horrifying creatures and things man was never meant to know about. It's there that the Pentacle of Shadows lurks, biding its time before taking over the world with dark magics and monsters that lurk within the dark.