satellite
Interact with one of the broken shrines in the Briar Sloughs.
Only what a source states. A quest with nothing listed is a quest whose rewards are unpublished, not one that gives nothing.
This is a published supply line for a skill manual, and so unlocks a skill for purchase. Getting the book costs no skill points and no training time; buying the skill at a shrine afterwards costs both. Where a manual has more than one source, this is one route to it rather than the only one.
One source files it under the Briar Sloughs by its start location, the other under St. Tyna's Grove by where it goes. Filed by where it starts, because that is what a planner needs.