[s4e23] Operation Mongoose (2) Direct

: Before dying from the darkness's attack, the Apprentice reveals that only the Sorcerer, Merlin , has the power to destroy the darkness forever, setting the stage for Season 5. Key Revelations & Details Once Upon a Time season 4 finale recap: Operation Mongoose

: The freed darkness attempts to possess Regina. To protect her friend’s hard-earned happy ending, Emma Swan sacrifices herself by tethering her soul to the darkness. She vanishes, leaving behind the Dark One's dagger, which now bears her name. [S4E23] Operation Mongoose (2)

Upon returning to Storybrooke, the characters face immediate new threats: : Before dying from the darkness's attack, the