April Henry is the master of the 'popcorn thriller' for teens. This book doesn't waste time with flowery prose or slow-burn world-building. It starts with a death threat and maintains that urgency until the final page.

It is a perfect tool for getting a kid back into reading. The stakes are high, the chapters are bite-sized, and the mystery is genuinely engaging. While the biological warfare elements add a layer of real-world dread, the focus remains on the protagonist's resilience and survival.