When demons begin appearing on Earth unpredictably, foreshadowing a catalysmic breakdown of their magic, Artemis and his friends face a new foe -- a twelve-year-old girl whose intellect just might match Artemis' own -- as they try to prevent catastrophe. Once again, Artemis will have to pair up with his old comrade, captain Holly Short, to track down the missing demon and rescue him before the time spell dissolves and the lost demon colony returns...

Young Arthur Penhaligon must weigh an offer from Lady Friday that is either a cunning trap for the Rightful Heir or a golden opportunity that he must seize

Presents the continuing adventures of Henry York, who has been living in Kansas with his cousins, where he discovers doorways leading to other worlds and becomes involved in a multi-world struggle between good and evil

When he goes to spend the summer with his great-aunt in the family's old house, eleven-year-old Drew is drawn eighty years into the past to trade places with his great-great-uncle who is dying of diptheria.

A lonely doctor who once occupied an unusual lakeside home begins exchanging love letters with its newest resident, a frustrated architect. When they discover that they're living two years apart, they try to unravel the mystery behind their extraordinary romance before it's too late

As her mother prepares to be a contestant on the 1980s television game show, "The $20,000 Pyramid," a twelve-year-old New York City girl tries to make sense of a series of mysterious notes received from an anonymous source that seems to defy the laws of time and space

Ten years ago, the prehistoric past collided with the present as time itself underwent a tremendous disruption, transporting huge swaths of the Cretaceous Period into the world of the twentieth century. Entire neighborhoods and cities were replaced by dense primeval jungles and modern humanity suddenly found itself sharing the earth with fierce dinosaurs. In the end, desperate measures were taken to halt the disruptions and the crisis appeared to...

"In the half a square mile of decay and demolition that was England's Saxon capital, eternity is loitering between the firetrap housing projects. Embedded in the grubby amber of the district's narrative among its saints, kings, prostitutes, and derelicts a different kind of human time is happening, a soiled simultaneity that does not differentiate between the petrolcolored puddles and the fractured dreams of those who navigate them. Fiends last mentioned...

After learning that he has been sent from the future for a special purpose, eighteen-year-old Jack receives help from an unusual dog and a shape-shifting female fighter.

"It is a search for a view of the universe that unites two seemingly opposed pillars of modern science: Einstein's theory of general relativity, which deals with large scale phenomena like planets, solar systems and galaxies, and quantum theory, which deals with the world of the very small -- molecules, atoms and electrons. In the last few years, physicists have made big steps toward their goal of a completely new theory of space, time and the universe,...