Sunset is the sixth and final book in the second Warriors series, The New Prophecy.
Tropes appearing in this book:
- Almost Dead Guy: Hawkfrost taunts Brambleclaw one last time and warns him that nothing is over before he dies.
- An Arm and a Leg: Berrykit gets his tail caught in a fox trap and badly mangled, foreshadowing the danger they'll pose later on in the book. The Medic Leafpool determines that she can't save it, and amputates it, leaving a stump. The injury makes the kit's mother so afraid of life in the wild that she temporarily leaves the Clan with her kits to return to the barn where they were born.
- Avenging the Villain: Part of Hawkfrost's motivation for attempting to kill Firestar is vengeance for Tigerstar's death.
- Back from the Dead: Cinderpelt is revealed to have been reincarnated as Sorreltail's daughter Cinderkit.
- Blood from the Mouth: Hawkfrost coughs up clots of blood shortly before he dies.
- Blood Is Squicker in Water: Hawkfrost's death: he stumbles into the lake bleeding from stab wound in his throat, fulfilling the prophecy Blood will spill blood and the lake will run red.
- Broken Aesop: When Firestar has to choose between reinstating his old deputy, Graystripe, or keeping Brambleclaw, StarClan tells Leafpool that Firestar should make his decision with his head, not his heart (oh so subtly hinting at Brambleclaw), completely ignoring all the times in the series characters have been told to listen to their heart or do what they feel is right. In fact, the whole reason Firestar chose Graystripe in the first place was because he was told to follow his heart.
- Cain and Abel: Brambleclaw and Hawkfrost, with the older Brambleclaw being the good half-brother who kills his evil kin.
- Caught in a Snare: The climax of the book involves Firestar getting caught in a fox trap.
- Chekhov's Boomerang: The fox traps. First, Berrykit loses half his tail in one. Then later, it turns out to be instrumental to the villain's plot, and to beating the villain.
- Continuity Nod: In one scene, Firestar says to Brambleclaw, "Remember when I had to go away for a while, when you were a new warrior?", and talks about how Graystripe said he'd wait for Firestar to return, as a reference to Firestar's Quest. Interestingly, Sunset came out over half a year before the release of Firestar's Quest, so it referenced a scene that fans didn't know about yet.
- The Coup: Tigerstar and Hawkfrost come up with a plan for Brambleclaw and Hawkfrost to kill the Clan leaders at a Gathering and forcibly take control of all the Clans. Brambleclaw disagrees with it, and it is never attempted.
- Dark Is Evil: The villainous cats Hawkfrost and Tigerstar are dark brown tabbies.
- Death Is Dramatic: Hawkfrost gets a wooden stake driven into his throat by his brother and yanked out. He stands right back up as he's gushing blood, and then falls into the lake, causing the nearby water to turn red from his blood.