Cryptic Tome of Tailoring

The Cryptic Tome of Tailoring can drop from any mob in for tailors, but most likely to from Karnoth for the quest Shadows Awaken in Teluuna Observatory at Embaari Village. It starts The Cryptic Tome of Tailoring, which begins a short chain to unlock the Tailoring Emporium blueprints for the Garrison.

The quest line reveals that the tome belongs to Ameeka.