Mismagius (AHD)

You're wandering the Fallen Heroes' Keep. You, a young male (or female), have been tasked with guarding the place for the night. Two hours in, you hear many unsettling murmurs behind one of the statues. Your only option, as a night guard, is to investigate said murmurs. When you do, though... a tap on your shoulder. You turn around frantically to see there seems to be nothing else, until you turn back... BOO! You scamper back in terror. Ah, ha-ha-ha-ha! Oh, what's wrong? Did I scare you?