"Queen Death"A SURPRISING ALLIANCE AND A HEARTBREAKING SACRIFICE -- When The Hollow sends a terrifying message to Vincent (Yusuf Gatewood), he must team with Haley (Phoebe Tonkin) and Freya (Riley Voelkel) to embark on a desperate mission to stop the Hollow once and for all — even if it requires a heartbreaking sacrifice. Refusing to allow anyone in his family to pay the high price of defeating their enemy, Klaus (Joseph Morgan) makes a surprising alliance and enacts a plan that threatens to change the Mikaelson family forever. Daniel Gillies and Charles Michael Davis also star. Nicole Rubio directed the episode written by Beau DeMayo (#409). Original airdate 5/19/2017.