Edward Fosca is a murderer. Of this Mariana is certain. But Fosca is untouchable. A charismatic Greek Tragedy professor at Cambridge University, Fosca is adored by staff and students alike. Particularly by the members of a secret society of female students known as The Maidens.

Mariana Andros is a brilliant but troubled group therapist who becomes fixated when one of The Maidens, a friend of Mariana's niece Zoe, is found murdered.

Mariana, who was once herself a student at the university, suspects that behind the idyllic beauty of the spires and turrets, lies something sinister. And she becomes convinced that, despite his alibi, Edward Fosca is guilty of the murder. But why would the professor target one of his students? And why does he keep returning to the rites of Persephone, the maiden, and her journey to the underworld?

When another body is found, Mariana's obsession with proving Fosca's guilt spirals out of control, threatening to destroy her credibility as well as her closest relationships. But Mariana is determined to stop this killer, even if it costs her everything – including her own life.

The only life Tress has known on her island home in an emerald-green ocean has been a simple one, with the simple pleasures of collecting cups brought by sailors from faraway lands and listening to stories told by her friend Charlie. But when his father takes him on a voyage to find a bride and disaster strikes, Tress must stow away on a ship and seek the Sorceress of the deadly Midnight Sea. Amid the spore oceans where pirates abound, can Tress leave her simple life behind and make her own place sailing a sea where a single drop of water can mean instant death?