Paratha's bloodline is a little funky. Even if it's only been 500 years since the lucky human, she's going to have millions of descendants in the strict technical sense. After the first few generations most of them (Calanthe's parents, for example) are completely normal people. But sometimes the bloodline reasserts itself and manifests spontaneously (and often traumatically; draconic blood isn't a thing humans are really "meant" to have), and depending on the intensity you suddenly have superpowers like a half- or quarter-dragon. Or you're a sorcerer.<br/><br/>But I certainly have no objection to Elizabeth being a dragon sorceress in origin! Would it have spontaneously manifest, or was she normal until she learned to access the bloodline's power with the Watcher's help?