(4) 4-6 Illustrated by Michael Wandelmaier. This volume highlights scientific mysteries, dating from ancient times to the twentieth century, that have been reinvestigated using modern techniques including DNA analysis. A final section for each mystery analyzes whether the new information is conclusive. Color photos and maps add visual engagement, but the stylized illustrations give the people a disconcertingly similar look, be they ancient Chinese or twenty-first-century Argentineans. Glos., ind.

Reviewer: Gail Hedges