Sentry Xyrinn
 

I got a problem with doing the quest about deepwater harpoon today. After returning potion of marr to Sentry Xyrinn in the isle of spectre, she gave me experience and then she disapeared.

Only left the message below:
Sentry Xyrinn says 'I am unable to locate NPC type 69041'
Sentry Xyrinn says 'I am unable to locate NPC type 69115'

I have no idea how to go next step of this quest.

Fixed, pending update.

Gonna necro this thread

http://everquest.allakhazam.com/db/quest.html?quest=621

you're not supposed to give her the potion to obtain the harpoon, you follow the dialog she paths to specters and drops the harpoon on her depop

In reference:

"Went back a 4th time but just hailed her and talked to her but didn't give her the potion. She eventually walked up by the spectres and stood there. None of them touched her but they did aggro on me. Killed each of them twice, then as I was killing the last one she says:

"Many thanks to all who aided in this battle. I offer you this, a weapon I found on a slain Erudite paladin. May Marr watch over his soul and may Marr guide yours. Now I must go."

With that she leaves the harpoon on the ground.

Since I still had the the last dose of the potion, I went back and respawned her (by asking Styria Fearnon 'where is Sentry Xyrin') and let her walk up to the spectres before giving her the potion. She did as she did the previous times I handed it to her. She disappeared with the "summoned away" text." - Stormtreader