The Hydrogen Sonata

In this gripping installment of the Culture series, the Gzilt civilization faces its imminent end as it prepares to Sublime, elevating themselves to a higher existence. However, chaos ensues when the Regimental High Command is destroyed, implicating Lieutenant Commander Vyr Cossont, who now finds herself on the run. Accompanied by a reconditioned android and a dubious Culture avatar, Cossont must embark on a perilous mission to locate the oldest person in the Culture, unraveling secrets that could change everything for her civilization.