"Nail-biting action with a scientifically and technologically involved plotline gives this novel an edge, and, moreover, the character development is surprisingly rich given the fast pace of the narrative; the weight of the themes also keeps the story from reading like a movie script. Red herrings keep the reader guessing until the end. Hard to put down." —Booklist 

The race-against-the-clock feel of TV’s popular show 24 meets the action-packed romance of the film Run Lola Run. This high-concept teen thriller sends readers on the race of their lives.

Carina’s senior year is spiraling downward. Fast. Both her mother and her uncle, the only two family members she’s ever known, are dead. Their deaths were accidents, unfortunate results of the highly confidential research they performed for a national security organization. Or so she’s been told.

She’s not buying it.

After finding a unique code hidden beneath the stone in a ring her mother left to her, Carina goes straight to the only family she has left: her boyfriend, Tanner.

The people Carina loved kept dangerous secrets. Secrets that make her question the life she’s been living up to now. Her life is on the line, but more importantly, so is Tanner’s. And if she fails? He dies. 

Praise for Infected: 

"Littlefield has written a heart-stopping adventure about a future in which science has become humanity’s enemy. A thrilling read for those who enjoy mysteries, strong female protagonists, and a smattering of math and science references in their YA lit."--School Library Journal