On the brink of discovering who - or what - lies behind her mother's death, Rosie Frost begins a new adventure with a murder to solve, revenge on her mind, and more questions than she has answers.

It's a new term at Heverbridge School and Bloodstone Island is in turmoil: mutant animals are on the loose, jealous classmates want to bring Rosie down, and, even worse, there's a black hole to deal with. Below the island's surface, an everlasting star is growing in strength and it just may end them all.

Rosie discovers the northside of the island, home to the alluring Imperium Palace. But is the palace one of scientific genius or deadly menace?

While she fights to know the truth about her past - and her family's ancient ties to Bloodstone - Rosie begins to wonder if the price for the truth may be too high. She must discover what she's really made of as a fresh danger puts her new home - and all that she loves - at risk.