The first book in the spine-tingling Dark Matter trilogy about the frightening effects of a biological experiment gone wrong. An epidemic is sweeping the country. It spreads fast, mercilessly. Everyone will be infected. . . . It is only a matter of time. You are now under quarantine. Young teen Callie might have been one of the first to survive the disease, but unfortunately she didn't survive the so-called treatment. She was kidnapped and experimented upon at a secret lab, one that works with antimatter. When she breaks free of her prison, she unleashes a wave of destruction. Meanwhile her older brother Kai is looking for her, along with his smart new friend Shay, who was the last to see Callie alive. Amid the chaos of the spreading epidemic, the teens must find the source of disease. Could Callie have been part of an experiment in biological warfare? Who is behind the research? And more importantly, is there a cure?

An important contribution to Victorian literature studies with strong connections to cultural and medical history

A new, counterintuitive theory for how social networks influence the spread of behavior New social movements, technologies, and public-health initiatives often struggle to take off, yet many diseases disperse rapidly without issue. Can the lessons learned from the viral diffusion of diseases improve the spread of beneficial behaviors and innovations? How Behavior Spreads presents over a decade of original research examining how changes in societal behavior—in voting, health, technology, and finance—occur and the ways social networks can be used to influence how they propagate. Damon Centola's startling findings show that the same conditions that accelerate the viral expansion of an epidemic unexpectedly inhibit the spread of behaviors. How Behavior Spreads is a must-read for anyone interested in how the theory of social networks can transform our world.

Harper's informs a diverse body of readers of cultural, business, political, literary and scientific affairs.