While spending the summer with their grandmother in San Antonio, Texas, twelve-year-old Nan and her younger brother find artifacts buried in the yard and discover how to use them to travel back through time to significant moments in their family history.

A Dig in Time 1992, Puffin Books, New York, NY

ISBN-13: 9780140360011

Trade paperback

A Dig in Time 1991, Margaret K. McElderry Books

ISBN-13: 9780689505256