Despite being the few lucky survivors of the Battle of Dathomir, Merrin only saw a few glimpses of what happened that day. All she remembered was an armored warrior brandishing his lightsabers and killing her sisters. After a few years, when Malicos escaped the unfortunate Order 66 and reached Dathomir, he fell to the Dark Side of the Force, and by using his vile and cunning methods, he became the leader of the Nightbrothers clan. However, to gain more power, he tricked Merrin into believing that this destruction was caused by the Jedi, who had been the enemy of the Nightsisters for a long time. Thereby, to avenge her fallen sisters, Merrin decided to help and even share the secrets of her powers with Malicos.