When Jarrett J. Krosoczka was in high school, he was part of a program that sent students to be counselors at a camp for seriously ill kids and their families. Going into it, Jarrett was worried: Could anything he did make a difference? Wouldn't it be depressing to be around kids facing such a struggle? But instead of the shadow of death, Jarrett found something else at Camp Sunshine: the hope and determination that gets people through the most troubled...

Sally M. Walker works alongside scientists as they excavate colonial-era graves and examine fragile 400-year-old skeletons. See what they can determine about these early Americans-a ship's captain, an indentured servant, and others-from studying their bones.