Sunfire!

A science fiction novel written during the early 1960s. The narrative follows Hugh Kellard, a former space explorer who returns to Earth after a traumatic experience on the planet Sunside. The book explores themes of exploration, the nature of consciousness, and humanity's place in the cosmos through Kellard's journey and struggles to come to terms with what he encountered in space. In the story, Kellard grapples with the aftermath of a disastrous mission that resulted in the deaths of his colleagues. As he attempts to retire to a quiet life in his grandfather's old house, he is confronted by Halfrich, a representative of the Survey, who demands to learn the truth about his experiences on Sunside. Throughout their discussions, Kellard reveals that he witnessed a mysterious, sentient energy on Sunside, referred to as the ''children of the stars,'' which fundamentally alters his perception of life and humanity’s role in the universe. Ultimately, he and his team return to Sunside, where they encounter these entities, leading to a poignant realization about the limits of human understanding and the vast, untapped potential of the cosmos. The novel concludes with a sense of acceptance and hope for future explorations, despite the revelations that challenge the characters' views on their place in the universe.