“Nexus is the most brilliant hard SF thriller I’ve read in years. It’s smart, it’s gripping, and it describes a chilling reality that is all-too-plausible… Ramez Naam is a name to watch for.” —Brenda Cooper, author of The Silver Ship and the Sea and The Creative FireMankind gets an upgradeIn the near future, the nano-drug Nexus can link mind to mind. There are some who want to improve it. There are some who want to eradicate it. And there are others who just want to exploit it. When a young scientist is caught improving Nexus, he’s thrust over his head into a world of danger and international espionage, with far more at stake than anyone realizes.