Invisible Friend #2 Golden & Grey: The Nightmares That Ghosts Have Louise Arnold(2007)When you have a ghost as your friend, like Tom Golden does, you quickly learn the benefits. Grey Arthur supplies Tom with pens in class, grabs Tom's lunch when he forgets it, and generally helps him out as any best friend would. It's just that, in this case, no one else can see Grey. But right as Tom is settling into a comfortable routine, his life is once again turned on its ear when Grey Arthur starts a school for Invisible Friends in Tom's house.