-An ancient book can be found in Ruathym, most of the book is written in Netherese-

Thultanthar ("Shade" in the Loross language), also known as the Shade Enclave and the City of Shade, was a Netherese flying city, created in the year -1471 DR[1], some 1,483 years after Ioulaum created the first such floating city. Thultanthar's high mage known as Telamont Tanthul or more commonly 'Lord Shadow' had been experimenting with the Plane of Shadow for some time and had successfully shifted the entire city into the Plane of Shadow mere days before Karsus cast Karsus's Avatar and temporarily destroyed the Weave in the Year of Sundered Webs (-339 DR). For some reason though, Lord Shadow could not move the city back to the Prime Material Plane. It took weeks but eventually, they managed to return to Netheril, or at least what was left of it. Searching for survivors for days, the city floated over the ruins of the Netherese empire. Finding none, Lord Shadow assumed it was the work of the Phaerimm and began planning his revenge. He stopped though, when he realised that one city was not a match for them and that his subjects were likely the last of the empire's people. He abandoned those plans and retreated back into the Plane of Shadow, vowing that one day, they would return and reestablish the empire. The city's clerics of Shar cast divinations and saw what had really happened, but only informed the noble families, presumably on the whim of Shar herself for some reason. The excursion into the Plane of Shadow, due to unforeseen circumstances has lasted much longer than Lord Shadow anticipated. So for over 1,700 years, the inhabitants have battled the Malaugrym and the other shadowy horrors of the realm, while each generation became gradually more attuned to the plane itself, becoming what are now known as Shadovar.[citation needed]

In the Year of Wild Magic (1372 DR), Thultanthar returned to Faerûn after the elf Galaeron Nihmedu finished a spell to bring Shade back to Toril where the Shadovar, led by Telamont Tanthul, found themselves floating over the Dire Wood. Almost immediately, the princes of Thultanthar (now known more commonly by its translated name of Shade) have been busy looking for Netherese ruins and artifacts as well as spying on people and places that could possibly hinder their ultimate goal of creating a new Netheril in their image.

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