Daryl Stack is an Artisan Tailoring trainer located in Tarren Mill in the Hillsbrad Foothills.
In-game Picture
Location in Hillsbrad Foothills
He is in the church directly to the east of the Inn. (63.6, 20.8)
TomTom command:
/way Hillsbrad Foothills 63.6 20.8 Daryl Stack
