The novel “Crux” by Ramez Naam was published for the first time in 2013. It’s the second book of the Nexus trilogy and follows “Nexus”.

Six months have passed since Kaden “Kade” Lane publicly released Nexus 5, the latest version of that nanotechnology that allows a direct connection between different minds, and the world’s situation has become explosive between repression and terrorist attacks. Kade and Feng are fleeing, hunted by bounty hunters and governments, but at the same time must try to face events that are likely to lead to a war between humans and posthumans.

Rangan Shankari and Ilya Alexander are prisoners of the US government and are being tortured to be forced to reveal the secrets of Nexus. Samantha “Sam” Cataranes abandoned the ERD and is taking care of a group of childre born with Nexus in their brains but how can she avoid getting involved in the crisis? Kade possesses the secret of Nexus backdoors, will he be wiser than all humanity?