Board Thread:General Discussion/@comment-25926288-20151116014923/@comment-4094405-20151117230008

I have a slight theory for as to how Hook was oblivious to the fact that he was a Dark One. In this episode, we did see that he could be knocked unconscious, considering that's what Emma did to him. So, at least in terms of him not being able to sleep, perhaps she controlled his "sleep patterns" indirectly by casting a sleeping spell on him. Referring to his magic, I suspect that she suppressed it somehow, but that's less supported than my Sleep Theory.

However, I do like the whole Sword in the Stone Theory for how his abilities and Dark One nature were negated.