'Vivid, funny, exciting and inventive' Philip Pullman 'Has a magic all of its own' Bernardine Evaristo 'What an inspiration. The future just got so much better' Benjamin Zephaniah FIGHT CRIME, ACROSS TIME! Leaplings, children born on the 29th of February, are very rare. Rarer still are Leaplings with The Gift – the ability to leap through time. Elle Bíbi-Imbelé Ifíè has The Gift, but she’s never used it. Until now. On her twelfth birthday, Elle and her best friend Big Ben travel to the Time Squad Centre in 2048. Elle has received a mysterious warning from the future. Other Leaplings are disappearing in time – and not everyone at the centre can be trusted. Soon Elle’s adventure becomes more than a race through time. It’s a race against time. She must fight to save the world as she knows it – before it ceases to exist . . .

From the preface of the author: "...I have divided this work into two books; in the first of these I have confined myself to those matters concerning pure analysis. In the second book I have explained those thing which must be known from geometry, since analysis is ordinarily developed in such a way that its application to geometry is shown. In the first book, since all of analysis is concerned with variable quantities and functions of such variables, I have given full treatment to functions. I have also treated the transformation of functions and functions as the sum of infinite series. In addition I have developed functions in infinite series..."

For a thousand years, infinity has proven to be a difficult and illuminating challenge for mathematicians and theologians. It certainly is the strangest idea that humans have ever thought. Where did it come from and what is it telling us about our Universe? Can there actually be infinities? Is matter infinitely divisible into ever-smaller pieces? But infinity is also the place where things happen that don't. All manner of strange paradoxes and fantasies characterize an infinite universe. If our Universe is infinite then an infinite number of exact copies of you are, at this very moment, reading an identical sentence on an identical planet somewhere else in the Universe. Now Infinity is the darling of cutting edge research, the measuring stick used by physicists, cosmologists, and mathematicians to determine the accuracy of their theories. From the paradox of Zeno’s arrow to string theory, Cambridge professor John Barrow takes us on a grand tour of this most elusive of ideas and describes with clarifying subtlety how this subject has shaped, and continues to shape, our very sense of the world in which we live. The Infinite Book is a thoroughly entertaining and completely accessible account of the biggest subject of them all–infinity.

Robinson, the master of fast-paced stories blending horror, science fiction, and thrillers, tackles his most ambitious subject to date: reality itself. An amalgam of the works of J.J. Abrams and Ridley Scott, Infinite is a bold SF novel exploring the vastness of space and a man's desire to exist, find love, and alter the course of his life.

An accessible history and philosophical commentary on our notion of infinity. How can the infinite, a subject so remote from our finite experience, be an everyday tool for the working mathematician? Blending history, philosophy, mathematics, and logic, Shaughan Lavine answers this question with exceptional clarity. Making use of the mathematical work of Jan Mycielski, he demonstrates that knowledge of the infinite is possible, even according to strict standards that require some intuitive basis for knowledge. Praise for Understanding the Infinite “Understanding the Infinite is a remarkable blend of mathematics, modern history, philosophy, and logic, laced with refreshing doses of common sense. It is a potted history of, and a philosophical commentary on, the modern notion of infinity as formalized in axiomatic set theory . . . An amazingly readable [book] given the difficult subject matter. Most of all, it is an eminently sensible book. Anyone who wants to explore the deep issues surrounding the concept of infinity . . . will get a great deal of pleasure from it.” —Ian Stewart, New Scientist “How, in a finite world, does one obtain any knowledge about the infinite? Lavine argues that intuitions about the infinite derive from facts about the finite mathematics of indefinitely large size . . . The issues are delicate, but the writing is crisp and exciting, the arguments original. This book should interest readers whether philosophically, historically, or mathematically inclined, and large parts are within the grasp of the general reader. Highly recommended.” —D. V. Feldman, Choice

“Vero, you remember you once said there were people who would follow me to the gates of hell?” “A figure of speech.” “We’d better find them. That’s where we’re going.” After the defeat of the evil Dominion forces at Farholme, Commander Merral D’Avanos prepares a task force to rescue thirty hostages captured by the fleeing Margrave Lezaroth. Merral’s only hope is that he can get to the hostages before they’re taken to Lord-Emperor Nezhuala at the Blade of Night—the nexus of the Dominion’s power. But in order to get there, Merral and his crew will have to survive a perilous trip through Below Space. Meanwhile, news of the Dominion’s defeat at Farholme reaches Ancient Earth but is tempered by the sobering truth of the enemy’s growth and strength. It is now clear that an attack on the Assembly is imminent, but how far should the Assembly go to stop it? And does the real danger lie in the Dominion or in the subtle evil that has arrived at the heart of the Assembly itself? The Infinite Day is the thrilling conclusion to the epic Lamb among the Stars series that has readers and critics raving.

For as long as she can remember, Wren Gray’s goal has been to please her parents. But as high school graduation nears, so does an uncomfortable realization: Pleasing her parents once overlapped with pleasing herself, but now . . . not so much. Wren needs to honor her own desires, but how can she if she doesn’t even know what they are? Charlie Parker, on the other hand, is painfully aware of his heart’s desire. A gentle boy with a troubled past, Charlie has loved Wren since the day he first saw her. But a girl like Wren would never fall for a guy like Charlie—at least not the sort of guy Charlie believes himself to be. And yet certain things are written in the stars. And in the summer after high school, Wren and Charlie’s souls will collide. But souls are complicated, as are the bodies that house them . . . Sexy, romantic, and oh-so-true to life, this is an unforgettable look at first love from one of young adult fiction’s greatest writers. Praise for The Infinite Moment of Us STARRED REVIEW "The scenes of sexual intimacy are described with innocently erotic frankness, offering an ideal (if not idealized) model for readers on the cusp; this is Forever... for a new generation, offering character depth Cath and Michael never achieved. Summer love has never been so good." —Kirkus Reviews, starred review "In contrast to unhealthy depictions of sex and relationships that teenagers (and adults) are often exposed to in media and entertainment, Myracle offers up a passionate romance built on a bedrock of love, respect, and trust. And it’s difficult to see that as a bad thing." —Publishers Weekly "Two mature recent high school graduates fall in love and bring out the best in each other in Lauren Myracle's thoughtful exploration of an intimate relationship...the relationship between Wren and Charlie always remains realistic and involving." —Shelf Awareness "This charming romance has multidimensional characters, straightforward sexuality, and a pace that lets readers fall in love with the main characters. Myracle expertly captures the intense connection of first love, from the need to spend every moment together to trying to figure out how to communicate with one another." —School Library Journal "The single-focus intensity of Wren and Charlie’s feelings is spot-on for the age group... chapters move between both their perspectives as they grow into the relationship, offering readers of both sexes a rather compelling example of the how-to’s of intimacy." —The Bulletin of The Center for Children’s Books