You are magical

Para jóvenes lectores que además ejercen de espías, detectives, conspiradores y aventureros, este libro presenta todo tipo de sistemas, de lenguajes y de ingenios para crear y ocultar mensajes secretos. Desde las órdenes cifradas de Julio César, hasta el extraño mensaje en clave que escribió el hombre de la máscara de hierro, el código que utilizó Sherlock Holmes o la fabricación de tinta invisible, con ejercicios prácticos y un diploma acreditativo.

Un joven profesor de arte, llega en mitad del invierno a Venecia, para completar sus estudios. En apenas cuatro días, es testigo del asesinato de un famoso falsificador de arte, se enamora de una mujer excepcional y conoce a personajes tenebrosos unidos por la clandestinidad del delito.

Muddy Creek in Edgewater, Maryland is the site of a major makeover. The land around the stream has worn down. Find out what caused Muddy Creek to erode, and the many steps involved in saving it. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process, from the initial research and brainstorming sessions, through the design and testing ...

Batter up and explore the comprehensive history of America's favorite pastime-baseball! This fun book features baseball's timeline, which follows the evolution of the baseball official rules through time. Also addressed are the first African American and Women's baseball leagues. Photos will keep readers engaged and vocabulary related to the game and its history is provided.