* ClicheStorm: A humble farm-boy discovers upon reaching manhood, that he is [[LastOfHisKind the last of his line]], related to a villain by blood, is destined to take the throne, quickly becomes a total badass, inspires people to rebel against a corrupt king, even ends up winning the heart of a princess he rescues... fortunately that's just the first couple books. [[RealityEnsues Book 2 begins with him being given all sorts of crash courses in history given that he never grew up educated and learning actual fighting techniques, and people getting in trouble when he goes out recklessly]].
* CosmicDeadline: The ending can feel rather sudden, with just about all the greater threats being dispatched at the end, and only two chapters after the climax really gives a resolution, complete with [[spoiler: Trent's infection being cured entirely offscreen]].
* MoralEventHorizon: [[spoiler:Hector either crosses it when he tries to kill Vega, or when he changes his mind about sparing 9 year old Pick]].
** While Lucas is no stranger to this (and likely crossed it within book one), in-universe, he seems to cross it when he [[spoiler: mauls Milo to death]].
* TheyWastedAPerfectlyGoodCharacter: The other lions - Leopold's father, during his brief screentime, shows that he is as passionate as all the other Catlords, but has far more reason within him than his son and grandson. Sadly, [[spoiler: Lucas kills him]], and we do not get to know of things from their point of view.