The Death of The Queen - S1.E49

Since the Queen is sick, Jang Ok Jeong thinks that luck is on her side. She then orders a shaman to do some black magic near the Queen's residence because she wants her to die. But Jang Moo Yeol, who is suspicious about Jang Ok Jeong behaviour has discovered the secret about Crown Prince health. Back at the palace, Prince Yeoning finds the doll used by the shaman. But then, the Queen dies. As her last word, she wants the King to protect Prince Yeoning.