Valiant (#4)

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Legendary war hero Captain “Black Jack” Geary fights to stay ahead of his enemies in the fourth novel in Jack Campbell’s New York Times bestselling military science fiction series.

Deep within Syndicate World space, the Alliance fleet continues its dangerous journey home under the command of Captain John “Black Jack” Geary—revived after a century spent in suspended animation. Geary’s victories over the enemy have earned both the respect—and the envy—of his fellow officers…

Geary has made many risky decisions as commander of the Alliance fleet, but ordering them back to the Lakota Star System where the Syndics nearly destroyed them has his officers questioning his sanity. It’s a desperate gamble that may buy the fleet just enough time to prepare for the Syndics’ inevitable return.

Even as he struggles to give the fleet a fighting chance at survival, Geary faces dissent from within. An unknown number of officers want a change of command, but Geary knows that the Alliance fleet must stand together, or else the Syndic forces will tear them apart…


“This wonderfully well-plotted story is strongly reminiscent of the old Hornblower novels, featuring exciting and believable battles. The story brings back the true meaning of romance and captures the spirit of strong men and women facing unimaginable odds with courage and honor. It carries you along on the adventure, and you’re eager to go where it takes you.”

RT Book Reviews

“The series is fast-paced and enjoyable to read… Readers who enjoyed David Weber’s Honor Harrington books, Ian Douglas’s Space Marines, or Walter Hunt’s Dark Wing series should also enjoy this series.”


“A great series […] Campbell continues to entertain and satisfy with VALIANT If you like military SF, The Lost Fleet is always enjoyable, and VALIANT is a worthy continuation of Black Jack Geary’s saga.”

SF Site

“Jack Campbell does a good job of fulfilling the requirements of both military SF and hard SF in THE LOST FLEET: VALIANT, and the novel will please fans of both forms.”

“A wonderful space opera filled with engrossing battles, dissections of military strategies and speculative scenarios […] nonstop action and character development.”

Night Owl Reviews

Awards & Accolades


#25 debut New York Times Mass Market Fiction Bestseller List


USA Today Bestseller debute


#2 Locus Bestseller


#35 Nielson Bookscan Mass Market Bestseller List


Top 5 Barnes & Nobles sf/fantasy Bestseller lists


Top 5 Borders sf/fantasy Bestseller lists