There’s so much worldbuilding packed into this, and the ending with the destruction of the diamond sounds like it could be really cool to run!

Running the Fallen City is clever, would be cool to see the Foundry Points expanded on but that is some easy prep for a Warden. I might suggest using a different color for the hyperlinks, the green on black was just a little hard to read. Otherwise, the graphic design is really beautiful. The choices for images were perfect. Very well-written, good premise and I like how it unfolds.

The visual design brings out a great atmosphere, almost newspaper-like (especially at the start, where that works really well). I really like your overland adventure content, but think it would really benefit from an expansion to flesh out the foundry / city of the dead. Great work :)