Population Migration / Travel
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.
The shadovar, led by Telamont Tanthul, found themselves floating over the Dire Wood. Almost immediately, the princes of Thultanthar bussied themselves looking for Netherese ruins and artifacts that could possibly aid their ultimate goal of creating a new Netheril empire. The returned Netherese expanded their new empire for the next 113 years.