Stuck of Fog Island quest (Led Astray)

[Blue]

The undead mage gives you three clues about things you must find. I found Calypso's skull, the message in a bottle, but I can't seem to find the last item and there's no quest marker for it. What did I miss?

[[TAW] Derisat Hartfelt]

oh you are very close, there's actually 4 but you ony need 3. One is off the corpse of some dead Inquistions to the north/north east, but the closest one to him is from a weather book up the hill overlooking the pond/waterfall with the water creautres and the golem

[OMGWTFLMAO]

Go to your log journal, find the quest there and track it. It should show X's on your map as clue as to where the last item is.

[Jazz the Goose]

every item is marked, if not you should already have those. so talk to him again

[Blue]

Found it, thanks. And no, the only one marked for me was the bottle, else I'd not have had to ask the question here ;). I've had several marker bugs with some quests.