This excerpt from "Doctor Who: Eternity Weeps" by Jim Mortimore begins with a dedication to his late father and other supporters, highlighting the personal context of the book's creation and some of the challenges Mortimore faced that year. The narrative then transitions to a science fiction setting, introducing the Cthalctose, a species of intelligent, ancient Greek-level philosophers residing in a volatile, acidic world. The story quickly shifts to the human characters, primarily Bernice Summerfield and Jason Kane, who are on a tumultuous honeymoon in Turkey, searching for Noah's Ark. Their journey is complicated by military presence, rival expeditions, and the mysterious Agent Yellow, an escalating biological and geological threat. As events unfold, the true nature of the Ark and the Cthalctose's connection to Earth's fate are revealed, leading to a desperate attempt to avert planetary destruction and highlighting the strained relationship between Bernice and Jason, as well as the Doctor's manipulative involvement.