Bloodstream

Dr. Claire Elliot has moved to Tranquility, Maine, a small resort town on the shore of Locust Lake. She came to give her adolescent son, Noah, a calmer life than the big city offered, and to let him get some distance from the memory of his father's death. She works in town as a doctor.

When the first cold of winter arrives, a teenage boy in her care commits an appalling act of violence. It is only the first. More of the town's teenagers lash out in deadly ways, and Tranquility is soon frightened and confused.

Claire learns that the town has been through this before. Twice in every century, its children turn violent. She suspects a biological cause behind the outbreak and begins to wonder whether the quiet lake is hiding some danger in its water.

As the attacks spread, Claire works to protect both the town and Noah. Her search points toward something worse than a natural sickness: a conspiracy to manipulate nature so that innocent people end up killing. This is a medical thriller with a fast pace, a cold small-town setting and a doctor who reasons her way toward the cause.