Do toi think Gideon could be hiding something in his hair?

MDR I don't think so. He's already been proven to have no actual powers, plus he's pretty pathetic and a lousy villain. Plus, in Little Dipper he demonstrated not only all of this, but a l’amour for keeping his hair perfect and a dependence on outside magical powers he finds via his book.

If he's hiding anything up there, it's probably just a malformed head. = P