¿Qué le pasa al microscopio?: Resolver el problema (What's Wrong with the Microscope?: Fixing the Problem)

Describes the ancient giant kangaroo of Australia's distant past that was five times the size of today's largest kangaroos. Discusses how the animal lived and how it became extinct.

Translated summary: In northern Iceland, 1829, Agnes Magnúsdóttir is condemned to death for her part in the brutal murder of her lover. Based on actual events.

Isabel de Alsasua se ve inmersa en una intriga politica tras la que se esconde una secta que quiere sembrar la destruccion. 1911 Europa es un polvorin a punto de estallar. En este clima de tension la inteligencia britanica descubre la existencia de una peligrosa secta, los kalikamaistas. Todos los agentes que intentan infiltrarse en ella mueren antes de descubrir la identidad de sus dirigentes, pero sus informes son preocupantes. La secta persigue regenerar la humanidad a traves de una purga y estan a punto de desarrollar un arma como el mundo jamas ha visto. Dos años despues, Isabel de...

Stephen F. Austin grew up to become known as the Father of Texas. Readers can learn about his interesting and incredible life in this appealing biography that has been translated into Spanish and highlights both Austin's life and Texas history. Through vivid images and illustrations, supportive text, an accommodating glossary and index, and fascinating facts, readers will learn about Texas pioneers, the empresario system, Freemasons, and how Austin became such an important figure in Texas history.