Charlie knew it would be one of those days. Saturdays are always crowded at the mall's virtual reality arcade, but she never imagined it would end in being kidnapped by fairies and bitten by a vampire. A pair of mischievous pixies have decided that Charlie is the hero who will save their world - whether she wants to or not. Now, to get back to her own world she must rescue a kidnapped princess and find the broken pieces of an ancient artifact. It also couldn't hurt to convince her guide that he doesn't want to defect to the enemy horde. Staying alive would be a nice bonus, too. Yeah, it was one of those days. But this time, the monsters are real. Keystone is a fun fantasy mashup with elements of sci-fi and paranormal romance.