I'd be genuinely surprised if the pedo-wizard wouldn't be exposed in the following chapter. You cannot show us who the villain is, and then try to play a game of masquerade with the spotlight beaming on the bad guy.
That being said, I somehow feel like this is such a...I don't want to say "bad story", but it tries so hard to be as mediocre as it possibly can, that it actually feels like the author would try to play off the "villain's ruse" for real.
Which reminds me,
https://www.youtube.com/watch?v=DN9DW4rrEjY