Where can you hide when you're running from yourself?

Catarina thought they'd stopped the Hydra virus. She was wrong.

After laying everything on the line to decrypt the vaccine, Cat realises that Lachlan's daemon code is in the panel of every person on the planet. With it, he can reprogram humanity.

She, Cole and Leoben set out to stop him, but they're on a timer. Cartaxus - the shadowy corporation that's both helped and hindered them - has a deadly end game in play. The virus is evolving, the vaccine is dying, and if Cat can't find Lachlan in three days, they'll use lethal code to wipe out everyone.

Their path takes them to Entropia, an underground city deep in the desert and home to the most extreme gene hackers, run by the queen of coding, Regina.

Struggling with the revelations about her past, and plagued by strange visions, what Cat finds in Entropia is more than just a trail to Lachlan. Because in the vaulted chambers of Regina's kingdom, Cat is forced to question everything she knows and everyone she trusts, and discovers that the biggest threat of all may be buried in her own mind.

*The extraordinary conclusion to the This Mortal Coil trilogy - who will survive the oncoming storm?*

Two factions at war

A plague that can't be stopped

A cure that could destroy them all . . .

Cat's hacking skills weren't enough to keep her from losing everything - her identity, her past, and now her freedom.

Meanwhile, the person who's stolen everything from her is close to realizing a hacker's dream: the solution to humanity's problems in gene form. Or so she thinks . . .

But now a new threat has emerged - a threat that could bring the world to the brink of a devastating war.

Both sides will stop at nothing to seize control of humanity's future, and that the centre of this war is Cat, and a race against the clock save millions of lives . . .

The gripping finale to a series The Verge has called 'perfect YA sci-fi'

3 billion lives at stake. 2 people who can save them. 1 secret hidden in their DNA. A breathtaking debut series about one girl's quest for answers in a genetically and technologically advanced future. There's no gene for RUN LIKE HELL.

When a lone soldier, Cole, arrives with news of Lachlan Agatta's death, all hope seems lost for Catarina. Her father was the world's leading geneticist, and humanity's best hope of beating a devastating virus. Then, hidden beneath Cole's genehacked enhancements she finds a message of hope: Lachlan created a vaccine.

Only she can find and decrypt it, if she can unravel the clues he left for her. The closer she gets, the more she finds herself at risk from Cartaxus, a shadowy organization with a stranglehold on the world's genetic tech. But it's too late to turn back.

As the pieces fit together it's clear there is one final secret that Cat must unlock. A secret that will change everything.

With the pace and twists of a thriller, an emotional sucker-punch, the exquisite world-building of the best fantasy, and an imagined future that sci-fi fans will love, THIS MORTAL COIL has all the ingredients to become the next phenomenon in YA.