All I see each day are thieves trying to pillage these ruins. I don't know anything about an heir.
You might want to talk to Romeo at the Windmill Market to the northeast. He's an experienced merchant and might know something about this 'Heir.'
Oh, before you go, could you please drive away the Yellowsand Beasts and Desert Thieves around the ruins?
Greetings, traveler from afar! Welcome to Windmill Market. I am Romeo, the manager.
Romeo smiles at you.As you have seen, this place is known for its great windmills and is a popular tourist destination!
We also sell delicious Seaside Kebabs here. Care for a taste?