User blog comment:Hermione Chase/"The Blood of Olympus" Expectations/@comment-24118576-20131101152838/@comment-4517591-20131102090037

I don't know if this a plot hole or not but it wasn't it mentioned that Thalia could control the mist as well because she was the daughter of Zeus? It was in one of the old PJ books can't remember which one though.

So I was surprised when Hazel was given this development instead of Jason.

Maybe this is not a plot hole.