Spoiler
Clay Doll Extreme is kind of ugly with an ugly voice. I also think it's funny that Nasca red and Clay Doll Extreme both seem to have properties of Taboo's floating and throwing fireballs
Wakana appearing at the end in the Planetary Bookshelves, makes sense, is kind of chilling, and pretty cool
That being said, I don't know if I like plots where a character essentially becomes a different one, thus making them an antagonist. If a character doesn't act of their own volition, it doesn't really make for a compelling story. Even if one thought that Wakana was persuaded to work for Museum, her personality is way too different to even give that theory weight.
Toku comic of the week:
I kind of wish we had someone translating these for us
I mean, really, does she have to act so obviously evil/brainwashed?