Board Thread:Spoilers!/@comment-26159109-20151007195419/@comment-25926288-20151129034715

Is sacrificing one life to save potentially hundreds or thousands of lives not worth it? Is a smudge on  your heart worth it?

Think practically. If Emma didn't have that plan, Dark Hook would go on a killing spree and She'd probably have to kill Hook and eventually kill herself or terrorize others due to being lonely for hundreds of years without purpose.