Kristi Holl Books
Ancient Mesopotamian technology
By Kristi Holl
When we think of technology, we might think only of our modern tools, such as electronics, computers, and cutting-edge gadgets, but civilizations throughout the ages have used technology to improve...
Read More
Danger at hanging rock
By Kristi Holl
Anxious to prove his competence as a guide to his ranger father, fifteen-year-old Brad is appalled when, after being left in charge of a tour of Indian burial mounds, a five-year-old boy disappears...
Read More