Swordsman Adrian Masters journeys to another world to rescue human slaves from their dragon masters.

"Now" is a simple concept--you're reading this sentence now. Yet a real definition of "now" has eluded even the great Einstein. We know that time stretches and is affected by gravity and velocity. Yet, as eminent physicist Richard A. Muller points out, it is only today that we have all the physics at hand--relativity, entropy, entanglement, antimatter, and the Big Bang--to explain the flow of time. With these building blocks in place, Muller reaches...

"A boy goes on a long car ride to visit his grandmother and discovers time moves faster or slower depending on how bored he is"--

In Avenue of Mysteries, Juan Diego--a fourteen-year-old boy, who was born and grew up in Mexico--has a thirteen-year-old sister. Her name is Lupe, and she thinks she sees what's coming--specifically, her own future and her brother's. Lupe is a mind reader; she doesn't know what everyone is thinking, but she knows what most people are thinking. Regarding what has happened, as opposed to what will, Lupe is usually right about the past; without your...

"An enormous snow-covered mountain has appeared in the Pacific Ocean. No one knows when exactly it showed up, precisely how big it might be, or how to explain its existence. When Harold Tunmore, a scientist of mysterious phenomena, is contacted by a shadowy organization to help investigate, he has no idea what he is getting into as he and his team set out for the mountain. The higher Harold's team ascends, the less things make sense. Time moves differently,...

When Jessica finds--and then loses--an unfinished book about her life, she learns that if she cannot keep it from falling into the wrong hands, the balance of the universe is in peril.

When eleven-year-old Olive and her distracted parents move into an old Victorian mansion, Olive finds herself ensnared in a dark plan involving some mysterious paintings, a trapped and angry nine-year-old boy, and three talking cats.

After moving with her parents to Iowa, twelve-year-old Lucy discovers a mysterious notebook that can bring stories to life and which has a link to the 1914 disappearance of her great uncle.

A search to find the magical conch shell and restore it to its proper home deep in the Himalayas sends Anand and Nisha to the bleak futuristic city of Coal, where the air and water are polluted and the upper classes live in luxury under hermetically sealed domes.

The story begins at the turn of the previous century, with the young H. G. Wells writing and rewriting the fantastic tale that became his first book and an international sensation: The Time Machine . It was an era when a host of forces was converging to transmute the human understanding of time, some philosophical and some technological: the electric telegraph, the steam railroad, the discovery of buried civilizations, and the perfection of clocks....