The Valkyrie Protocol

TIME IS RUNNING OUTAgent Raibert Kaminski and the crew of the Transtemporal Vehicle Kleio have stumbled across a temporal implosion that has claimed two whole universes, and neither Raibert nor his crew can—figure out what caused this calamity, or how to stop its spread. Meanwhile, old colleagues of Raibert’s from the Antiquities Rescue Trust, together with a version of Samuel Pepys transplanted from the 17th century into the 30th, have proposed an expedition into the past. The goal? To branch the timeline by preventing the Plague of Justinian, one of the worst pandemics in human history. And on a multidimensional level, governmental entity SysGov’s multiverse neighbor, the xenophobic Admin, is stirring. While their ambassadors put on a friendly show, the Admin is amassing a fleet of advanced, heavily armed time machines—with SysGov firmly in the crosshairs.

In the midst of the temporal turmoil, time is running out for Raibert and his team to save the rest of the known universes from ceasing to exist. Navigating the paradoxes of time can be a killer task—especially when dogged by those who seek your destruction at every turn. But the crew of the Kleio won't go down without a fight, no matter where—or when—the threat to their home comes from.

About prequel The Gordian Protocol:

“Tom Clancy-esque exposition of technical details . . . absurd humor and bloody action. Echoes of Robert Heinlein . . . lots of exploding temporal spaceships and bodies . . . action-packed . . .” —Booklist

“[A] fun and thrilling standalone from Weber and Holo. . . . Time travel enthusiasts will enjoy the moral dilemmas, nonstop action, and crisp writing.”—Publishers Weekly

About David Weber:

“[A] balanced mix of interstellar intrigue, counterespionage, and epic fleet action . . . with all the hard- and software details and tactical proficiency that Weber delivers like no one else; along with a large cast of well-developed, believable characters, giving each clash of fleets emotional weight.”—Booklist

“[M]oves . . . as inexorably as the Star Kingdom’s Grand Fleet, commanded by series protagonist Honor Harrington. . . . Weber is the Tom Clancy of science fiction. . . . His fans will relish this latest installment. . . .”—Publishers Weekly

“This entry is just as exciting as Weber’s initial offering. . . . The result is a fast-paced and action-packed story that follows [our characters] as they move from reaction to command of the situation. Weber builds Shadow of Freedom to an exciting and unexpected climax.”—The Galveston County Daily News

“Weber combines realistic, engaging characters with intelligent technological projection and a deep understanding of military bureaucracy in this long-awaited Honor Harrington novel . . . . Fans of this venerable space opera will rejoice to see Honor back in action.”—Publishers Weekly

“This latest Honor Harrington novel brings the saga to another crucial turning point . . . . Readers may feel confident that they will be Honored many more times and enjoy it every time.”—Booklist

“[E]verything you could want in a heroine. . . . Excellent . . . plenty of action.”—Science Fiction Age

“Brilliant! Brilliant! Brilliant!”—Anne McCaffrey

“Compelling combat combined with engaging characters for a great space opera adventure.”—Locus

“Weber combines realistic, engaging characters with intelligent technological projection . . . . Fans of this venerable space opera will rejoice . . .”—Publishers Weekly

About Jacob Holo:

"An entertaining sci-fi action novel with light overtones of dystopian and political thrillers."—Kirkus on The Dragons of Jupiter

"Thrilling . . . sci-fi adventure."—Kirkus on Time Reavers