Keanu Reeves has collaborated with author China Miéville on a new novel titled 'The Book of Elsewhere', inspired by his comic book series 'BRZRKR'. Reflecting Reeves' contemplation of mortality and personal grief, the novel follows an immortal warrior's quest for personal death, exploring deep philosophical themes. Reeves clarified that he did not write any of the novel, allowing Miéville to take the lead in storytelling. The book blends action and introspection, featuring the series' protagonist, Unute. Readers can expect it to resonate with fans of both Reeves' film work and Miéville's literary style. The BRZRKR series is also set to be adapted into a live-action film and anime series on Netflix.