Accompanying their parents on an archeological dig at the site of an ancient Hopewell Indian burial ground, sibling investigators Jason, Peter, and Kim discover that someone does not want the area disturbed.

A world list of books in the English language.

This volume describes and lists series published for young people from early elementary grades through high school. Fiction series from 1976 through 1990 (and new titles in existing series through 1991) are included, as well as nonfiction series, which are limited to in-print titles only.