Location: This quest takes place in Bloodmyst Isle. Follow up on Quest: Matis the Cruel.

Shortly: Vindicator Aesom in Blood Watch wants you to use the Water Sample Flask to get a Bloodmyst Water Sample.

How to: Run north from Blood Watch till you reach the sea and than run west on the coast till you find the river. Follow the river in to find the waterfall. That’s where you need to use the flask.

Rewards are 1350 experience and 250 reputation with Exodar.