Mist Explanation

	“M-i-s-t. It’s a kind of veil separating the mortal world from the magic world. Mortal minds—they can’t process strange stuff like gods and monsters, so the Mist bends reality. It makes mortals see things in a way they can understand —like their eyes might just skip over this valley completely, or they might look at that dragon and see a pile of cables.”
	Piper swallowed. “No. You said yourself I’m not a regular mortal. I’m a demigod.”
	“Even demigods can be affected. I’ve seen it lots of times. Monsters infiltrate some place like a school, pass themselves off as human, and everyone thinks they remember that person. They believe he’s always been around. The Mist can change memories, even create memories of things that never happened—”

-The Lost Hero