When Ariel Farwalker hears the moon talking to her, she thinks she must be going crazy. Then she discovers an ancient map, and learns that the moon is part of a mysterious summons that's calling her on a new journey. With her surly guardian Scarl by her side, Ariel sets out on an adventure that leads her to new friends-the beautiful Flame-Mage Sienna and the mute boy Nace, who captures Ariel's heart. As the four travel on, strange things start to happen-fragments of Ariel's past appear in the present, so that it seems that time itself is coming undone. At the end of the journey, Ariel will learn where her journey began, and have a chance to save her life as she knows it.

Ariel has always been curious, but when she and her best friend Zeke stumble upon a mysterious old telling dart she feels an unexplained pull toward the dart, and to figuring out what it means. Magically flying great distances and only revealing their messages to the intended recipient, telling darts haven't been used for years, and no one knows how they work. So when two strangers show up looking for the dart, Ariel and Zeke realize that their discovery is not only interesting, but very dangerous. The telling dart, and the strangers, leads them to a journey more perilous and encompassing than either can imagine, and in the process both Zeke and Ariel find their true calling.

A space expert and a geology expert take readers on an out-of-this-world adventure to the moon, where they must navigate the dangerous terrain to clear up space debris before it can interfere with a lunar mission.

“Sharp and seductive…a fantasy with teeth.” —Julie C. Dao, author of Forest of a Thousand Lanterns on The Keeper of Night In this riveting sequel to The Keeper of Night, a half Reaper, half Shinigami soul collector must defend her title as Japan’s Death Goddess from those who would see her—and all of Japan—destroyed. Death is her dynasty. Ren Scarborough is no longer the girl who was chased out of England—she is the Goddess of Death ruling Japan’s underworld. But Reapers have recently been spotted in Japan, and it’s only a matter of time before Ivy, now Britain’s Death Goddess, comes to claim her revenge. Ren’s last hope is to appeal to the god of storms and seas, who can turn the tides to send Ivy’s ship away from Japan’s shores. But he’ll only help Ren if she finds a sword lost thousands of years ago—an impossible demand. Together with the moon god Tsukuyomi, Ren ventures across the country in a race against time. As her journey thrusts her in the middle of scheming gods and dangerous Yokai demons, Ren will have to learn who she can truly trust—and the fate of Japan hangs in the balance. Read the entire Keeper of Night duology! The Keeper of Night The Empress of Time

Help children measure and tell time by the sun, the clock and the calendar; and learn why there are 24 hours in a day, 7 days in a week and 365 days in a year. Here's a cross-curriculum approach to time with learning activities that bring together history, science, language arts and math. A comprehensive look at time from the ancient civilizations who first tried to understand, arrange and measure it - to modern society where we organize our lives around the clock!

An orphan and thief, Hugo lives in the walls of a busy train station. He desperately believes a broken automaton will make his dreams come true. But when his world collides with an eccentric girl and a bitter old man, Hugo's undercover life are put in jeopardy. Turn the pages, follow the illustrations and enter an unforgettable new world!

“Four players. It’s in the rules.” “Is this like, some sort of academic decathlon or something?” “Something like that.” Walkman-toting, guitar-playing Finn Mallory blames himself for his parents’ deaths and would do anything to turn back time and set things right. So, when he’s recruited into a secret club at his new school that specializes in competitive time travel games, Finn sees a world of opportunity open before him. The games, however, are far from benign. Competition is cutthroat. Scenarios are rigged. And the mysterious timekeepers who organize it all have no qualms about using—or disposing of—players to suit their own sinister plans. Now Finn must decide who he can trust while making peace with his past if he’s to have any hope of leading his team to victory and surviving his junior year. As the games commence, it’s time to press rewind.

Not so long ago we timed our lives by the movement of the sun. These days our time arrives atomically and insistently, and our lives are propelled by the notion that we will never have enough of the one thing we crave the most. How have we come to be dominated by something so arbitrary?The compelling stories in this book explore our obsessions with time. An Englishman arrives back from Calcutta but refuses to adjust his watch. Beethoven has his symphonic wishes ignored. A moment of war is frozen forever. The timetable arrives by steam train. A woman designs a ten-hour clock and reinvents the calendar. Roger Bannister becomes stuck in the same four minutes forever. A British watchmaker competes with mighty Switzerland. And a prince attempts to stop time in its tracks.Timekeepers is a vivid exploration of the ways we have perceived, contained and saved time over the last 250 years, narrated in the highly inventive and entertaining style that bestselling author Simon Garfield is fast making his own. As managing time becomes the greatest challenge we face in our lives, this multi-layered history helps us tackle it in a sparkling new light.

In the 18th century, purely scientific interests as well as the practical necessities of navigation motivated the development of new theories and techniques to accurately describe celestial and lunar motion. "Between Theory and Observations" presents a detailed and accurate account, not to be found elsewhere in the literature, of Tobias Mayer's important contributions to the study of lunar motion—including the creation of his famous set of lunar tables, which were the most accurate of their time.