It's been years since Cassandra and her sister, Cassie had been through their adventures. Travelling and fighting the monsters of their world, called Shades. Over the years Cassandra's memories of the entire duration of their travels have been erased, Cassie being the cause of this. now, as things being to escalate as they once did years ago, it's becoming harder to contain these memories to protect her dear sister from all the pain and heartbreak from years ago.