ooc: The cone of cold is a 60' cone, and the Ogre Mage was standing in the j14/l15 area when he launched it. While getting off to one side was a good idea, the table on page 307 of the DMG seems to indicate he can catch everyone in the cone.
I had half considered giving opale a cover bonus to reflex save since she's directly behind Charlarn, but then rejected the idea. I'm again tempted based on the save having been within 1 point of success. Anyone object to calling it 3/4 damage rather than full or half under this circumstance? That would put Opale at -8 hp.
I still think you all can pull this out, but an Ogre Mage's spell like abilities give it a heck of an opening move!