The Erased Hour: A Military Sci-Fi Time Travel Thriller. The Abandoned Hours Trilogy, #1

Captain Adeya Koss has fought the same battle twice. Only she remembers losing. Nine years into a brutal war against an enemy humanity barely understands, Koss commands the carrier Resolute and the fleet's most closely guarded weapon: a device capable of rewinding time. When disaster strikes, she can send the universe back and try again. The dead breathe. Ships are restored. Battles can be refought.
But there is a cost. Only the operator remembers the erased timeline. Every ship that burns. Every crew that dies. Every desperate last stand. Every mistake. Every scream. Koss carries them all alone while the rest of the fleet moves forward, unaware they were ever lost. As the Veil launch a massive offensive against Meridian Gate-the strategic chokepoint standing between the enemy and Earth-Koss is given unprecedented authority to use the Array at her discretion.
If the Gate falls, humanity's defeat is only a matter of time. At first, foreknowledge feels like an advantage. Then the victories become harder. A battle she wins still ends in hundreds of deaths. A rewind spent on the wrong threat leaves her defenseless against the real attack. Strange dreams begin spreading through the fleet. Clocks drift out of sync. Crew members remember things that never happened.
And the more often Koss reaches into the past, the more she begins to suspect a terrifying possibility:What if humanity isn't the only side capable of changing history?Now, trapped between a relentless enemy, a war slipping beyond prediction, and memories no one else can share, Koss must decide how much of herself she is willing to sacrifice to save a future that keeps changing beneath her feet. Because every erased hour still happened to someone.
And somewhere in the darkness between one timeline and the next, the war may remember everything. The Erased Hour is a gripping military science fiction thriller packed with fleet combat, high-stakes strategy, mysterious alien adversaries, and a unique time-travel premise that asks a haunting question:If you could undo every defeat, how many lost timelines could you carry before they broke you?