A fascinating look at the future of our oceans—and how human actions may change them. The Earth—our home—is covered mostly with water: the wide, deep, salty, and very blue ocean. It regulates our
“An engrossing introduction for young adult readers to the chillingly topical subject of man vs. microbe.” —The Wall Street JournalDid the Black Death destroy medieval Europe? Did cholera pave the way
The Middle Ages were a period of tremendous cultural and scientific advancement in the Islamic Empire—ideas and inventions that shaped our world. Did you know that:‧ The numbers you use every day (Ar
Did the Black Death destroy the feudal system? Did cholera pave the way for modern Manhattan? Did yellow fever help end the slave trade? Remarkably, the answer to all of these questions is yes. Tim
Eveningstar Macaw lives in a glorious Mayan city in the ninth century. When the king falls ill and dies, the city begins to crumble. An evil high priest, Great Skull Zero, orders the sacrifice of thos
This amazing true adventure story about the discovery of the Lascaux Cave will have young readers feeling that they've discovered something pretty special, too!?In 1940, four teenage boys and a dog dr
This amazing true adventure story about the discovery of the Lascaux Cave will have young readers feeling that they've discovered something pretty special, too!?In 1940, four teenage boys and a dog dr
For centuries, sailors have handed down stories of the giant squid. They say this mysterious monster of the deep chases ships and battles whales. They say it can weigh up to 1,000 pounds and that its
