The concept is pretty interesting and got me thinking up some questions regarding the lore:

1. How much does the general public know about the Makers? Are they an active, unseen force, and do they govern any territories? Do they hold any influence over how magic is used in this world?

2. How long ago was it since the ancestors migrated to these lands? Also, did they do a Noah’s Ark kind of thing and try and bring animals, seeds and stuff, with them? 

3. Is the Conduit at a sacred known location, or is it buried in the sand like a lost artifact?

4. Are there any preexisting natives that were born there, unlike the ancestors? 

5. What’s the technology like in association with magic, and magical artifacts? Are there airships, vehicles, etc.? 

6. Is there a standard currency? 

That’s all I can think of for now!