Endgame, by Loren L. Coleman, is the final book in the classic series of BattleTech novels. It chronicles the end of the Federated Commonwealth Civil War and concludes that storyline.
 From the back cover
|| It is the darkest hour of the ongoing civil war between Prince Victor Steiner-Davion and his sister, Katrina. With Victor brought low by the assassination of his love, Omi Kurita, the allied forces are rudderless. As Victor recovers in hiding, Katrina's military rallies.
Victor's last chance lies before him, and he will need to draw on his strongest supporters. Kell. Allard-Liao. Sandoval. Marik. Sortek. All have their parts to play as the allied forces attempt to sweep Katrina's loyalists before them. It is their final bid to claim victory, bring a tyrant to justice, and return the thrones of two interstellar nations to benevolent rule.
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