5x07 Emma Hook

EMMA AND MERLIN EMBARK ON A PERILOUS QUEST TO RETRIEVE PROMETHEUS FIRE FROM THE BIRTHPLACE OF DARK MAGIC, ON ABC S ONCE UPON A TIME Elliot Knight Guest Stars as Merlin, Liam Garrigan as King Arthur and Joana Metrass as Guinevere Nimue In Camelot, Merlin spearheads a mission to reunite the dagger with Excalibur so he can use the weapon to save Emma from the darkness threatening her soul. With Zelena in tow, Hook, Mary Margaret, David, Regina and Robin steal into Arthur s castle to take the broken sw