I love Opal as a villain (though I did passionately hate her for a long time when I read she killed Julius). Eoin has really done a great job constructing her character, but I think she should banish/die/get whipped away in time etc. in the next book, because she has played a main role in book 2,4 and now 6. I would like to see another new villain that would hang around for a while causing some trouble. (Oh my gosh!!! lol I would love to see Ark Sool as a villain - stuck-up, annoying and pathetic)
Yeah, that SUCKED! She's probably my favourite evil villain, but she's getting old! I'd like to see Turnball Root! Sool would work too though...OH! If they killed the Opal from the past, maybe Root would never have DIED!