From WoWWiki

Scryer's Tier is a terrace in Shattrath City, and the base of operations for the Scryers. At the center of the Tier is the Seer's Library, which serves as the faction's headquarters. Scryer's Tier also boasts an inn run by Innkeeper Haeltholand a variety of vendors, including reputation vendors and a reagent vendor behind the Seer's Library.

One who is favored by the Aldor will be attacked by Scryer guards and sent to the gates of Shattrath City with a three minute debuff if they attempt to visit the Scryer's Tier.

Subzones of Shattrath City
Aldor Rise • Bank • Inn • Lower City • Scryer's Tier • The Seer's Library • Shrine of Unending Light • Terrace of Light • World's End Tavern