Can the mark of betrayal be inherited or no? Say a Kuros is banished and they then take a fire dragon as a mate, and one of their hatchlings is a Kuros. Would this new Kuros inherit their parent’s mark, or are they spared that fate?

Lost Queen : The mark isn’t inherited, though a part of it could linger in the offspring. Not enough to alert other Kuros right away, but if investigated could be found. 

The offspring of a Riaocht’Nol could have the chance to join the ranks of the Kuros if they swore off relations to their poisoned blood and vowed themselves to the people. They’d be met with apprehension until proven loyal, of course, but it’s possible.