A young scientist, to the amazement and disbelief of his colleagues and other experts, has perfected a machine that lets him live one of mankind's oldest dreams--to live in times other than his own.

Meg Murry and her friends become involved with unearthly strangers and a search for Meg's father, who has disappeared while engaged in secret work for the government.

During her exploratory sojourns to Antarctica, Lucy Jane Bledsoe witnessed many amazing sights, such as mummified seals, and picked up more than a few survival tactics; for example, if you should find yourself in danger of falling into a crevasse, you should stretch out your body to avoid dropping farther. Part memoir, part survival tips, part curiosities, Lucy Jane Bledsoe's book lets readers vicariously experience the author's adventures while on...

A biography of the thirteenth-century Venetian explorer whose book about his travels across Asia and work for Kubla Khan helped to launch the Age of Exploration.

A factual biography of the traveler Marco Polo within a fictional storyline involving local merchants in a busy street market.

"Mason and Ty were once the very best of friends, like two nerdy sides of the same coin . . . until seventh grade, when Ava Petrakis came along. Now Mason can trace everything bad in his life to that terrible fight they had over the new girl. The one thing he'd give anything for is a do-over. But that can't happen in real life--can it? As a science kid, Mason knows do-overs are impossible, so he can't believe it when he wakes up from a freak accident...

Introduces the Philippines, describing its geography and climate, industries, history, resources and wildlife, culture, politics, and sports.

When thirteen-year-olds Jonah and Chip, who are both adopted, learn they were discovered on a plane that appeared out of nowhere, full of babies with no adults on board, they realize that they have uncovered a mystery involving time travel and two opposing forces, each trying to repair the fabric of time.

A biography of Christopher Columbus with special emphasis on some of the difficulties that Columbus faced on his voyage to the New World and what he found at the journey's end.

Letters and journal entries from a visit to Antartica, the windiest, coldest, most forbidding region on earth.