The cartel reaches its apex. A hundred-billion-won donation for a new city hall, the 38-year hiking club's final climb, a gleaming new town rising on promises. Everything looks perfect — and that is when the fractures begin. Granddaughter Lee Seo-jin speaks one sentence that draws the first crack. Reporter Yoon Jeong-ho starts digging for the truth. From her USGS lab, Lee Hye-jin escalates her warning, but no one listens. Brigadier General Carter watches. Kang Ha-young's spring day becomes her last spring. Just as Dae In-seon, the final emperor of Balhae, held his last feast before the kingdom fell, the last Saturday in Pyeongju dawns. Baekdu Mountain, The Thousand-Year Saga Volume 4.