From Stonehenge to the Bermuda Triangle, there are many places on Earth that remain a mystery to scientists. Readers will discover these curious places--and more!--as they move through this fascinating, Spanish-translated nonfiction title. This mysterious book features detailed images, informational text, and stimulating facts and theories in conjunction with upper-level features, such as chapter format, a glossary of terms, and an index. This 6-Pack includes six copies of this Level S title and a lesson plan that specifically supports guided reading instruction.