Author Deborah Cramer follows the migratory path of the tiny red knot, a sandpiper that flies 19,000 miles on its epic journey from North America to the Arctic and back. Cramer explores the perils facing this endangered bird and the amazing efforts of those trying to save it. The red knot and the horseshoe crab it feeds upon share their habitat with hundreds of millions of humans who live near the sea. Their fate and ours are intertwined. An eloquent and uplifting story.