The Thermopylae Protocol

NEW NOVEL IN THE BEST-SELLING GORDIAN DIVISION SERIES FROM NYT BEST-SELLING AUTHOR DAVID WEBER AND JACOB HOLO: When a ship from an uncharted universe explodes, it soon becomes apparent that someone is building a massive weapon away from the watchful eyes of the Gordian Division. Agent Cho and Detective Cantrell are deployed to get to the bottom of the mystery. If they don't it, means destruction on a universal scale.

A Time Storm is Brewing.

After an industrial ship carrying advanced self-replicating machines explodes on its way to Mercury, analysis of the wreckage reveals it to be forty years too old. Raibert Kaminski, the Gordian Division's top agent, and his crew on the TransTemporal Vehicle Kleio soon discover the ship had been transported to an uncharted universe, one with temporarily accelerated time. Forty years passed for the ship's industrial machines while everyone else experienced only a few short days. Raibert is certain a powerful weapon of some nature has been built out in the unexplored reaches of the multiverse, but where and by whom remains unknown.

The search is on, and the Gordian Division musters its fleet of time machines at Providence, a massive transdimensional station under construction. They call upon their allies from the militaristic Admin for aid in their search--but before plans can be formalized, the leader of the Admin's Department of Temporal Investigation is murdered while visiting Providence, and the joint operation is thrown into chaos.

Accusations fly and tensions mount between the two organizations. Detectives Isaac Cho and Susan Cantrell--both fast becoming experts in transdimensional crime--are dispatched to Providence. But the clock is ticking for the detectives and Raibert's crew. A vast, powerful conspiracy has shuddered into motion, and the two teams may be all that stand between it and destruction on a universal scale.

Praise for 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

Praise for 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

"Compelling combat combined with engaging characters for a great space opera adventure." --Locus

Praise for Jacob Holo:

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

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

Author: David Weber,Jacob Holo
Publisher: Baen
Published: 04/29/2025
Pages: 544
Binding Type: Mass Market Paperbound
Weight: 0.55lbs
Size: 6.70h x 4.10w x 1.40d
ISBN: 9781668072646

About the Author
With more than eight million copies of his books in print and 33 titles on the New York Times bestseller list, David Weber is a science fiction powerhouse. In the vastly popular Honor Harrington series, the spirit of C.S. Forester's Horatio Hornblower and Patrick O'Brian's Master and Commander lives on--into the galactic future. Books in the Honor Harrington and Honorverse series have appeared on 29 bestseller lists, including The Wall Street Journal, The New York Times, and USA Today. Additional Honorverse collaborations include the spin-off miniseries Manticore Ascendant with New York Times best-selling author, Timothy Zahn; and with Eric Flint, Crown of Slaves and Cauldron of Ghosts contribute to his illustrious list of New York Times and international bestseller lists.

Best known for his spirited, modern-minded space operas, Weber is also the creator of the Oath of Swords fantasy series and the Dahak saga, a science fiction and fantasy hybrid. Weber has also engaged in a steady stream of best-selling collaborations: the Starfire Series with Steve White; The Empire of Man Series with John Ringo; the Multiverse Series with Linda Evans and Joelle Presby; the Ring of Fire Series with Eric Flint; and the Gordian Division Series with Jacob Holo.

David Weber makes his home in South Carolina with his wife and children.

Jacob Holo is a former-Ohioan, former-Michigander living in sunny South Carolina. He has been a recreational geek since childhood, when he discovered Star Wars and Star Trek, and a professional geek since college, when he graduated from Youngstown State University with a degree in Electrical and Controls Engineering. He started writing when his parents bought that "new" IBM 286 desktop, and over the years, those powers combined to push him to the next level of nerddom: a sci-fi author who designs intricate worlds and tech systems . . . and promptly blows them up in a string of nonstop action.

He is the author of over fifteen books, including the best-selling Gordian Division series (with David Weber), Time Reavers (a Kirkus Reviews Best Indie Book); The Wizard's Way (with H.P. Holo), and Monster Punk Horizon: Excess (with H.P. Holo).