She and her twin brother, Marcus Today, or Mr. Today, came from Warbler Island. They met many people on their adventures including General Haluki. They founded Quill and wanted to take over. Marcus supported this and so did Haluki. Marcus erased every Quillian memory about the outside world including some of the adventurers which Justine took one as her secretary, Eva Fathom. Mr. Today later became known as The Coolest Kid to Quill. They purged kids, but later made Artimé. Last, General Haluki became a spy for Marcus.
High Priestess Justine is first seen during the purging when she purges Alex Stowe, Meghan Ranger, Lani Haluki, and Samheed Burkesh as Unwanteds. Aaron Stowe is announced as a Wanted. Aaron quickly ran through the ranks of the Quillitary, becoming her new secretary. Aaron tells her about Alex coming to him and about Artimé. She is furious and attacks immediately. She later dies, as Lani casts a lethal killing spell on her.
Justine hates creativity so much so that when Artimé was discovered, she quickly went to war with them. It is unknown why Justine hates creativeness but Eva Fathom mentions that when they were young, Justine couldn't use any magic.
Justine was a great bully when she was young.