After seeing on the patch notes that the Lich of Miragul was added a couple of other guild paladins and I proceded to
turn in our Book of Scales to the Oracle of K`Arnon in OOT and he would not accept the book. He is supposed to take the book and give you Miragul's Philactery that is used to spawn the real form of Miragul.
The first problem we encountered was that the oracle would not accept the book of scales. I found the second problem when I stopped at Halas on the way to Miragul's underwater cave to check on him. For my surprise I found the
Lich of Miragul standing by the guards at Halas entrance ramp. He looked very buggy (was in his human form instead of skeleton, he conned indifferent instead of being kos and was obviously at the wrong spawn spot) but since we couldn't do the turn I asked some guildies to help me kill him but he didn't drop anything.
I hope that this info helps fix Miragul's spawn and the book of scales turn in as they are part of the Fiery Avenger quest in Plane of Sky. See the link bellow for more info on the quest.
http://everquest.allakhazam.com/db/quest.html?quest=10