Baseborn. The Ouroboros - Nolan R. Highmoor

After victory, Maren Ashford wears the crown he won from the last heroic king, only to discover that conquest was the easier mercy. The United Realm is at peace, but peace has its own armies: ledgers, informers, sealed orders, and a queen whose patience is more dangerous than war. As Lyra turns preservation into doctrine, the old companions of the revolution become liabilities, heirs become instruments, and history itself becomes a battlefield of omissions. The Ouroboros brings the Baseborn trilogy to its close, tracing the cost of founding a dynasty when the price of victory is betrayal, memory, and the birth of a colder age.