i'm in malistaires lair & last stone rose i need will not register - any suggestions?
Are you sure that you still need his stone rose?
There are "two" stone roses in Dragonspyre.
Open your quest log and see which one is still showing in your log file.
One is "Dragonspyre - in the Dragon's Roost". Go to Dragonspyre Academy and ride your battle dragon at Dragon Claw Ridge. As soon as you get off of the dragon, go into the large Circle Room with the Spirit Guardians (I think that was their name). You will see a "low wall" just to the left of the Spirit Guardians. Go around that wall, to the end of it, and the stone rose is in that little corner.
And one is "Dragonspyre - in the Crown of Fire". This one is in the room with Malistaire. Sounds like you already picked this one up, and you still need the one in Dragon's Roost.