Someone-or some thing-has kidnapped the dreaded Demon Earth. If he isn't found, the very fabric of our world will unravel, removing the Earth's gravitational field, and, incidentally, that of the magical land of Xanth as well! To combat this dastardly deed, six bold adventurers must locate the mysterious object known as the Swell Foop, and wield it in a deadly cosmic contest against an awesome enemy. The twenty-fifth exhilarating episode in Piers Anthony's fabulous saga of Xanth, Swell Foop blends laughter and romance, wonder and danger, in one of the most intricate and intriguing tales in the history of the series. Swell Foop, the twenty-fifth volume in Piers Anthony's bestselling Xanth fantasy adventures, is one of the most intricate and intriguing tales in the history of the series. At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

Meet Joe, the ill-fated tour guide at the center of a story that beings with the death of Abraham Lincoln, at Joe's hands. There are strange happenings going on at Dactyl, Inc., the world's first and only time travel tourism company. So strange that Joe, a tour guide, is promoted to the new position of Chief of Probes. His first probe: find out who's been traveling back in time and torturing his boss in rather disturbing ways. Joe finds himself catapulted from his dull life into a surreal journey where a blind hog-tying monkey is one of the sanest creatures he meets. Traveling through a past where the only thing that changes the present is death, while dealing with the fabric of space-time slowly unraveling, Joe stumbles into the middle of events that threaten both the Earth's future and past.

The overall aim of this book is to gain an appreciation of the impact of computer architecture on software.

This book shows readers how to write small, well-understood procedures in successive versions within well-defined modules with separate test drivers. With a focus on language-independent design, this book instructs readers in designing programs from specifications, and to work first with descriptions, then prototypes, through program revision. The book brings a mathematical viewpoint to concrete problems, and utilizes Modula-2 for programming examples. Each new set of concepts is accompanied by diagrams, words, and equations, in addition to question-answer dialogues that reflect the most common reader difficulties.