Here is the start of the article, so you can get an idea of what it is about:
I don't play 4th Edition, so I don't know exactly what a Feyspire is, but I figure there must be a way to translate this back to the 3rd Edition Eberron cosmology.Keith Baker on keith-baker.com wrote:The fourth edition of Dungeons & Dragons introduced the concept of the Feyspires: cities that drift between the Faerie Court of Thelanis and the material world. Legends say that the giants of Xen’drik pillaged one of these mystical cities, stealing its treasures and taking its people as slaves. According to these tales, the elves of Eberron are descended from these fallen fey. And it’s said that the ruins of the citadel remain somewhere in the wilds of Xen’drik. But these events occurred many tens of thousands of years ago, and the elves themselves know nothing about their distant ancestors. All that we know is the name of the fallen feyspire: Shae Tirias Tolai, the City of Silver and Bone.
So: the ruins of an ancient mystical city are lost in Xen’drik. But what will explorers find if they discover this shattered feyspire? What WAS the City of Silver and Bone? As with anything in Eberron, the answer is ultimately up to you. But here’s one possibility… an option that sheds new light on a few of the mysteries of the elves.
Study the lore of ancient cultures, and you’ll find a recurring story of a city that stands on the edge of life and death. A shade is drawn to Dolurrh, but along the way it passes through a wondrous city of silver and bone, a city with tapestries of fine glamerweave and bone fountains filled with blood. The librarians of this final city record the tales of the ghosts, a last record before their memories are lost in Dolurrh. The artists work with creative shades, offering a last chance to complete unfinished works. And then there are the necromancers who make darker bargains, offering a chance to return to the world of the living… but at a terrible cost.
This was Shae Tirias Tolai: the city at the crossroads, the repository of final thoughts and the last chance for the fallen to find a way back to the world. And its existence answers a number of questions that have lingered for some time.