From the frigid lakes of Siberia to the hot wastes of the Gobi desert, Dirk Pitt is on the trail of fabled treasure . . . Rescuing an oil survey team from a fre

This Answer Key is very easy to use, being clearly laid out, complete and giving page numbers for easy reference. Any potential difficulties are noted. Our Pion

This comprehensive activity book and curriculum guide about the Middle Ages contains comprehension questions and answers, maps and geography activities, colorin

Presents a history of the ancient world, from 6000 B.C. to 400 A.D.

In 1400 an immense Chinese fleet of hundreds of ships and tens of thousands of men sailed through the seas, reaching Indonesia, India, Persia, Arabia and Africa