(To Si'Nat) "It's been a long time since I've been here, but I can't imagine the palace has changed that much. The throne room should be in the south, southeast section of the second level of the palace."
(To Cugel) "I am Rowena, once a minstrel of Haven a long time ago. I was invited by the Protectors to join them in their realm. The harp was my instrument during my time here; I crafted it myself. It can summon me for a short period or play some of my tunes. It can also destroy the Eye of Arik, as I said. I don't recognize the statue though.
Arik is an ancient being of evil power. He was banished for his crimes a long time ago in a special dimension, but is always trying to find a way to escape. And apparently he has succeeded in sending a portion of his power to Haven through one of his Eyes - the "ruby" that the dwarves found; that is what has been killing the crops and livestock, summoning monsters to Haven, turning the inhabitants to stone, and creating the red forcefield. There's probably a cleric of Arik's trying to summon him here in the palace.
I don't know about any traps the palace might have, but I suggest you try to find the Eye and destroy it as soon as possible.
Good luck!"
And with that, she vanishes.