Ava Foster is Project Butterfly, a replicate of Project Moonlark. Raised in the same family as Sophie, she was brought to the Black Swan when she was 1 after the Neverseen attempted to kidnap her. Now, 14 years later, she is tasked with finding Sophie, who was brainwashed by the Neverseen, and bringing her back. But soon, she finds herself face to face with danger. What will she do? Can she bring back Sophie?