Everyone knows Thylacines are extinct. The truth is more complicated.

Thylacines are real but the secret that hides their existence has trapped them in a half-life, and only one person can set them free.

Sent to live in Tasmania, Australia, with a father she's never met, Ginny Martin's mission is to lay low and get through the school year. That is until she sees that first ghostly creature. Refusing to believe she's going crazy, Ginny will not stop until she's unearthed the truth behind the silver apparitions.

The search pulls Ginny into a world that shouldn't exist. A world that is being threatened. Someone has found the Thylacines and is killing them.

As Ginny struggles to unravel a century-old mystery that holds the key to their freedom, the answers bring her to the killer's attention. In a clash between worlds, where exposing the truth means death, is Ginny prepared for the cost of keeping the Thylacines safe?