Doctor Who
writer, Robbie Morrison
Newly regenerated, the Doctor is already on the move coming up against an ancient alien murdering her way towards resurrection as she impersonates the goddess Kali and a violent star on a terraformed ice planet.

by Arthur C. Clarke, Stephen Baxter (2005)
Humanity must try to learn to work together while threatened by extinction from a deadly sunstorm; meanwhile the mysterious Firstborn are observing in silence.
writer, Robbie Morrison
Newly regenerated, the Doctor is already on the move coming up against an ancient alien murdering her way towards resurrection as she impersonates the goddess Kali and a violent star on a terraformed ice planet.
Andre Norton
Snooping around a top-secret government installation, photographer Ray Osborne stumbled across an experimental time field. Suddenly the familiar Ohio landscape disappeared and Ray found himself transported to a prehistoric world where the dread priest of Atlantis waged a war against the Sun-born of Mu. So while the scientist of the Twentieth Century worked desperately to draw him back to the present, Ray Osborne was recruited by the people of Mu to win a war that could change the course of history, and trap him in the past forever!
(by) Frederik Pohl
From back cover Orb Trade paperback May 2011: **Earth is in crisis.** There simply isn't enough water and arable land to support the burgeoning population. As the threat of nuclear war looms, the United States looks to Mars for the precious resources that could save humanity. But somebody must actually journey to the Red Planet to effect a solution, and it would be far too difficult and costly to change Mars to suit man; therefore man must be changed to suit Mars. Roger Torraway didn't plan to be Man Plus, the man who must undergo the surgeries and shaping necessary to enable someone to survive the hostile Martian environment. When he volunteered to serve as an understudy to astronaut Willy Hartnett, Roger never thought he'd actually be called upon. But when Willy dies in a freak accident, Roger becomes humanity's last hope. With every new step toward becoming Man Plus, Roger becomes less and less the man he was to those around him, and more and more something new, something strange and alien. Nothing about him is spared, not even his mind, which must adapt to being... different... if he is to survive. All the while, he is constantly reminded that he must succeed in surviving on Mars -- there's no time to start over before war breaks out -- because the fate of humanity rests on his increasingly nonhuman shoulders. Years after it won the Nebula Award, *Man Plus* is now, more than ever, a powerful, affecting novel about the worldwide environmental crisis that approaches, and the timeless questions of what makes us human.
Vonda N. McIntyre
The Enterprise is summoned to transport a dangerous criminal from a starbase prison to a rehabilitation center: brilliant physicist Dr. Georges Mordreaux, accused of promising to send people back in time - then killing them instead. But when Mordreaux escapes, bursts onto the bridge and kills Captain Kirk, Spock must journey back in time to avert disaster - before it occurs. Now there's more at stake than just Kirk's life. Mordreaux's experiments have thrown the entire universe into a deadly time warp. Spock is fighting time...and the universe is closing in on itself with the relentless squeeze of… The Entropy Effect.