Well, without more context about the 'Trilogy of Death Three Complete Novels', it's difficult to give a detailed account. It could be a set of dark and thought - provoking novels. Maybe they follow different characters whose lives are intertwined with death in various ways. For example, one novel could be about a character dealing with the death of a loved one, another could explore death in a more philosophical or spiritual sense, and the third might show death in a post - apocalyptic setting. But this is all just speculation.
Mystery could also be a genre. There could be mysteries surrounding the deaths in the novels. For example, who caused a particular death, or what secrets are hidden behind the deaths that the characters need to uncover. It might involve detective - like elements where the characters try to solve the mysteries of death.
The Celestial Bane trilogy consisted of Celestial Bane I, Celestial Bane II, and Celestial Bane Pale. This series was a long Xianxia novel series created by the contemporary Chinese writer Xiao Ding. It was widely loved by readers because of its profound Xianxia cultural background, rich character creation, and fascinating storyline. The first novel, Celestial Bane I, described the growth of the protagonist, Zhang Xiaofan, from an ordinary teenager to a powerful cultivator, and revealed the huge conspiracy behind the story. The second game, Celestial Bane II, continued the storyline of the first game and deepened the relationship between the characters and their worldview. The third book, Celestial Bane, was the opening work of the entire series. It told the story of Zhang Xiaofan's growth from a commoner to one of the four disciples of the world's number one sect, Qingyun Sect. These three novels together constituted the Celestial Bane Trilogy.