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This is a quick live break down of what to do and where to go for the Living Story. It's not hard you can easily find the items roaming while holding the control button. You can start the lost and found part of the Living Story Achievement in Lion's Arche.
It's really fast to do you can even look out for people in the zone shouting where they found them. It's how I did it took me 5 minutes literally. It will take longer to get the kill achievement lol.