Raz, a mathematician, is among a cohort of secluded scientists and philosophers who are called upon to save the world from impending catastrophe.

NEW YORK TIMES BESTSELLER • “A richly detailed story on a par with the rest of the Pern canon . . . another successful McCaffrey mother-and-son collaboration.”—Booklist
At Natalon’s mining camp, Pellar embarks on a secret mission to discover whether the condemned criminals known as the Shunned are stealing coal. But the gifted tracker discovers that a far more treacherous plot is unfolding....

Retired from his fighting days, John Perry is now village ombudsman for a human colony on distant Huckleberry. With his wife, former Special Forces warrior Jane Sagan, he farms several acres, adjudicates local disputes, and enjoys watching his adopted daughter grow up.
That is, until his and Jane's past reaches out to bring them back into the game—as leaders of a new human colony, to be peopled by settlers from all the major human worlds,

...

“[Anne] McCaffrey here adds yet another dimension to her colorful and vivid saga by focusing on the attractive dolphins and their highly believable society.”—Publishers Weekly
When the first humans came to settle the planet Pern, they did not come alone: intelligence-enhanced dolphins also crossed the stars to colonize Pern’s oceans while their human partners settled the vast continents. But then disaster

...

“[A] solid start of a new series . . . fast-paced adventure.”—Publishers Weekly
Twin brother and sister Ronan and Murel are true children of Petaybee, the sentient planet that is their home. Like their father, they are changelings, able to converse telepathically with creatures and to transform into seals. The Petaybeans wish to protect the twins from curious scientists, but no one realizes that Ronan and Murel hunger...

A Fire Upon the Deepis the big, breakout book that fulfills the promise of Vinge's career to date: a gripping tale of galactic war told on a cosmic scale. Thousands of years hence, many races inhabit a universe where a mind's potential is determined by its location in space, from superintelligent entities in the Transcend, to the limited minds of the Unthinking Depths, where only simple creatures and technology can function. Nobody knows what strange...

Landing on a new planet where he's instantly caught up in the struggle between a tyrant and the rebels, Nomad, in a world under constant threat of a sunrise whose heat will melt the very stones, must gain enough power to leap offworld before he pays the ultimate price.

Best known for its influence on literary greats such as C. S. Lewis and later J. R. R. Tolkein, A Voyage to Arcturus explores the nature of good and evil by combining fantasy, philosophy, and science fiction. Maskull, a simple man, decides to embark on a journey through the galaxy accompanied by his friend Krag and his acquaintance, Nightspore. Flying through space in a crystal ship, they explore vast lands and meet an interesting cast of characters....

Weyrwoman Fiona struggles to keep her surviving Weyr in fighting shape while Lorana plans a complicated time-travel journey to save their world.