Draconian Spirits

In a world where not everyone is human, most humans feel like they are in danger of oppression. There are many Hybrids, like Centauroids, Sirens, Harpies, Griffins, Tiefling, etc. What people didn't expect, were the Draconians, or as they're better known, Dragon hybrids. Early on, the Draconians were hunted to near extinction by humans and others alike, for fear that the Draconians were a danger. Belladonna is the youngest of the last two Draconians in the Royal Line which, subsequently were the last of the Draconians as a species. Her parents disappeared when she was a youngling, leaving her and her brother, Lunyx, to fend for themselves. Years later, Lunyx goes in search of their parents, forcing Belladonna to stay behind in the Cove.
When their Cove runs out of prey, she has to venture beyond the safety she's accustomed to in search of food. Not used to having enemies, Belladonna is unprepared for traps and an aggressive human.
Where's Lunyx? Will Lunyx find out that Belladonna is missing? What will happen to Belladonna?

This is based off of a roleplay I was in on Kik. Sorry, I suck at descriptions. And yes, I'm aware that most of these creatures are found in either Greek, Norse, or other mythologies and D&D. I'm very aware.