Impulse

● "Captain Noah Fletcher and the Dauntless are recalled from Kepler‑22 with a single mission: find the Impulse, the Alliance's first jump‑capable vessel, lost without explanation after its ninth Spark-drive transition. Fletcher has thirty days to locate her. Thirty days before the stranded crew runs out of food. Thirty days before the Alliance must accept the unthinkable. But the Impulse could be anywhere. And Fletcher isn't the only one searching. If Earth's enemies reach the ship first, they'll gain access to the Spark drive — a technology powerful enough to shift the balance of power in the galaxy." ― quoted from this book's Amazon product page as 2026-05-20.