Book 3

Red Hat Mystery

by Dr Jerry Thomas

Published 1 January 1994
As ten-year-old Zack continues his travels with an archeologist through the Middle East, he looks for further evidence to support the stories from the Bible.

Book 4

Zack investigates the mystery of disappearing items and unusual nighttime activities at Thunder Mountain Camp, while pondering what it means to be a Christian.

Book 5


Book 8

Mystery on the Midway

by Dr Jerry Thomas

Published 1 October 1996
While helping his grandmother at the county fair, Zack becomes involved in proving that a new friend is not a thief while learning more about angels.