Scion is a CrossGen comic series set on the world of Avalon, which superficially resembles a conventional fantasy setting, but with high tech instead of magic. The series follows Ethan, the youngest prince of the Heron dynasty, as he incurs the wrath of the Raven prince Bron and falls in love with Bron's sister Ashleigh, who recruits him to a movement to free the Lesser Races, genetically engineered slaves and servants in both countries.The series has been re-collected in the following trade paperbacks:
Defecting for Love: Ashleigh is introduced as such. Then she recruits Ethan to her slave liberation underground, and the feuding countries thing gets a whole lot less important...to them. Ethan's family is very annoyed that he has largely abandoned their war in favor of his girlfriend's social crusade, and his brother Kai doesn't approve of Ethan's choice of girlfriend.
Lizard Folk: Some of the Lesser Races are rather reptilian, such as Skink.
Lower Deck Episode: One issue follows a Lower Races slave escaping from Raven lands to Ethan and Ashleigh's haven. The main cast appears only on the last page.
The Man Behind the Man: Bron could easily have been the Big Bad of the series, and had his own motivations (however petty) for hating Ethan...but he was only such a great threat because Mai Shen gave him powers and a lot of help in order to further her own plans.
Save the Princess: What Ethan and Kai set out to do after Ylena is married to Bron in Royal Wedding.
Scars Are Forever: The scar Ethan accidentally gives Bron, starting off this whole mess. Normally, Heron/Raven technology can heal wounds perfectly with no scars; Ethan's Sigil-Bearer power allows him to inflict wounds that cannot be healed this way.
Servant Race: The Lesser Races. In Heron lands, they have some rights, although not equal to humans; in Raven lands, they're enslaved with very few exceptions.
White Sheep: Ashleigh, princess of the country where the Lesser Races are outright enslaved, devotes her life to freeing them. Her brothers paint her as a more straightforward Black Sheep, and find her a convenient scapegoat for Bron's murder of their father.