Terra wathced it happen. "Hm," the right head mentioned, "this world sure is a weird one. What makes everything here appear and disappear? Magic?"
Left: "I dunno! Could be magic... But hey, it's totally epic. I mean, I just gotta love this place!"
*middle starts being philosophic* "Letters and words make this world up, so those must be the driving power behind it. This place is the crossing point of everyone's fantasy, so their imagination is as well..."*hushed mumbling in himself*