(4) 4-6 Edge Books: Unsolved Mystery Files series. This book introduces third and fourth graders to six archaeological mysteries: from Easter Island's stone monuments to the lost Chaco civilization in New Mexico. The coverage is slim: a brief description explains what makes the site unusual, and possible solutions to the historical riddle are touched on. Text boxes, photographs, and word definitions are combined in a busy but easy-to-follow layout. Maps, reading list. Glos., ind.

Reviewer: Antonio Trujillo

(4) 4-6 Edge Books: Unsolved Mystery Files series. This book introduces third and fourth graders to unusual natural phenomena from around the world. The coverage is slim: a brief description explains what makes the animal or event unusual, and possible explanations are touched on. Text boxes, photographs, and word definitions are combined in a busy but easy-to-follow layout. The wide range of topics covered gives the whole a disjointed feel. Maps, reading list. Glos., ind.

Reviewer: Antonio Trujillo