The Mound Builders' Secret(1994)
(The third book in the You-Solve-It Mysteries series)
A novel by Eileen Charbonneau
Readers join Tad Gist, his archaeologist father, and half-Cherokee site supervisor Linda Tassel as they investigate a Georgia archaeological dig that may hold the key to an ancient treasure and that has been jeopardized by sabotage and murder.
Used availability for Eileen Charbonneau's The Mound Builders' Secret
June 1994 : USA Mass Market Paperback