Board Thread:Show-Related Questions and Answers/@comment-1031724-20180131032348

In the Season 3 premier when the mermaid blows on the seashell horn. We initially think that's what called the storm, until the revelation that it was Mary Margaret, Regina, David, and Hook fighting that caused the storm.

So, if that's not what the mermaid did, then what did she do?

Or did it really have no effect other than providing an apple of discord to get them to fight each other and cause the storm? (even though she hinted at the truth with lines like "You'll kill yourselves")

(I can't remember if they explained it later, I'm just rewatching Season 3 for the first time in years, just skimmed the highlights of Season 2 and there were parts I completely forgot about like Archie's supposed death and the Lancelot thing) 