S1·E48 The Plot to Kill The Queen

But then, it's decided that Prince Yeoning will be studying with a famous scholar and not with the Crown Prince. Furiously, Jang Ok Jeong's mother goes to see a shaman and wants to know the fortune of Dong Yi's son, but she is told that her family will have a bloody end. He then tries to frame Oh Ho Yang for the burning of Dong Yi's house by asking her assassin to hang him with a suicide not. But, the exiled Cheon Soo saves him. Jang Ok Jeong meanwhile knows that her son's condition is no longer a secret and she is ordered by the Queen to tell the King the truth. But the next day, the Queen collapses and Jang Ok Jeong is plotting to get rid of her.