Board Thread:General Discussion/@comment-25517595-20150330011154/@comment-25926288-20150331015916

Maybe. But the Sorcerer has the power to make portals and all they need is to lure him and push him into it or just hatted the Dark One hundreds or thousands of years ago.

Mermaids only traverse magic waters, otherwise Ursula and Cruella would have went back home.

They never just talk to Blue about anything! She is humorously sneaky and shady only because the writers weren't aware that she was being written that way. To them, she was perfectly goody-goody, lol. So, I don't think they'll do anything with her unless they get a season six or something and want her as a villain (which would have been great, but is pretty much to late).