Recent promo inserts from the Lego magazine have hinted that there is an "ancient city" on Okoto. My theory is that said city is shown right here in the Legend video: These screenshots from the Legend video sure look like a city to me. If it's not the Ancient city, than what is it? It also sort of begs the question of why they put these shots in here if they weren't significant. More interestingly, it looks like the city is floating, in this last picture, on some sort of cloud or steam, and that there is a very subtle difference in the architecture that indicates things are wrecked. (But why is there a floating city in the middle of an island? Weird.) Also, this image + "all lived in harmony" may indicate that all of the tribes lived together in the Ancient city. The masks being scattered may have led to the Protectors abandoning the city and being scattered too, or having to go all over the island to protect the masks. I'm sure ya'll can take a gatling gun to this one. Go!