It has been four years since the government captured and imprisoned Amy Westgate after she massacred her family one moonlit night. She has grown up inside the secret laboratory known as The Music Box, where she has existed in two small rooms: a bedroom for when she’s human and a steel pen for when she isn’t. At the age of sixteen, knowing almost no other life, she is content in her insular world.
The team of researchers headed by cryptozoologist R.J. Blass have grown close after the attack on the facility that nearly killed them all. The Music Box is their world too and their old lives are just as forgotten as Amy’s. But when the government orders an end to the project, loyalties will be tested and old wounds will resurface.