American chestnut trees were once found far and wide in North America's eastern forests. They towered up to one hundred feet tall, providing food and shelter for people and animals alike. For many, life without the chestnut seemed unimaginable-until disaster struck in the early 1900s. What began as a wound in the bark of a few trees soon turned to an unstoppable killing force. An unknown blight was wiping out the American chestnut, and scientists felt powerless to prevent it. But the story doesn't end there. Today, the American chestnut is making a comeback. Narrative nonfiction master Sally M. Walker tells a tale of loss, restoration, and the triumph of human ingenuity in this beautifully photographed middle-grade book sure to appeal to fans of the Scientists in the Field series.