Tishtan

The Tishtan people were a culture that pre-dated the Age of Arcanum. They existed around the time of the Schism and were a nomadic society with a heavy focus on magic. In their travels, they built ritual sites across Exandria, the purposes of which modern researchers were still trying to discern as of 843 PD. Information about them is difficult to find, and the culture appears to have vanished with no explanation prior to the Age of Arcanum.

Hellcatch Valley site
A Tishtan site in Marquet's Hellcatch Valley, north of Yios and north-west of the Calloway Hideaway (roughly four to five days journey), is the expected site of the 843 PD apogee solstice. The excavation of this site puts it at a leyline nexus. Planerider Ryn told Bells Hells that the site is believed to have been the focus point for a solstice during the time of the Tishtan as well, lending credence to her theory that leylines move in a cyclical pattern over time, rather than shift randomly.

Exactly every minute, the tower located inside the excavated sinkhole alights and emits a burst of anti-magic.

History
The site's excavation had been helmed by the Aydinlan Seminary since 838 PD, but as of approximately Unndilar 843 PD, the Court of the Lambent Path and the Seminary agreed to let the Cerberus Assembly step in and in theory partner with the Seminary; however, per Ebenold Kai, in practice the Assembly had shut out everyone else. The Grim Verity's only contact at the site was Janina.

In her attempt to contact her mother via her dreams, Imogen Temult saw the excavation site. It contained a number of buildings with domes and arches, but all of them seemed to point towards an ancient forked tower at the center, rising from a partially man-made sinkhole. The sinkhole has been slowly expanded and the tower retrofitted and built out to accomodate a Malleus Key. Liliana was at the site, seemingly overseeing elements of it.

Ryn traveled to the site while Bells Hells were in the Feywild. After they destroyed the Malleus Key in the Shiver Keep, security at the Tishtan site was significantly increased; in a second dream, Imogen, Fresh Cut Grass, and Chetney noticed that Key was reinforced and enhanced with additional energy sources set in nearby underground tunnels. It was also guarded by automata of modern design but visible Aeorian inspiration Fresh Cut Grass have recognized. They also saw that Ryn had been petrified and left standing at the base of the Malleus Key and that Otohan Thull was present. The Paragon's Call are present there as well.