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Go to the Northern Foothills Shrine, north-west of Laslea Glen.
Only what a source states. A quest with nothing listed is a quest whose rewards are unpublished, not one that gives nothing.
One source attaches the Ravenous Flock Manual and a Quickcast Amulet to A Pilgrimage for Power: Bear Trouble instead. Both quests are in the same corner of the map and only one source lists each reward, so the manual is not asserted on either record until the pair is checked in game.