Dona Herweck Rice 
!Sin resolver! Misterios de la historia 

History is full of unsolved crimes, mysterious disappearances, and strange sightings. Readers will discover some of the most well-known mysteries in history–including Amelia Earhart, Big Foot, and the Salem Witch Trials–in this fascinating, Spanish-translated nonfiction book. Featuring detailed images, intriguing facts, and informational text in conjunction with a glossary of terms and an index, readers will be enthralled from beginning to end!