Hey, if a part of the name is in latin, why not the whole thing? "Corona Ampli Ateris Iridis" if I am correct... I may check the dictionary. I pretty much doubt that Nyarlathotep or whatever would speak in latin. I mean, can you imagine Cthulu coming to claim your soul saying "Pacta sunt servanda" ?
Now, Capt'n and Agar have said it plainly enough, but still I must add: I have no idea what a 'Tome and Blood' is. A d20 supplement I suppose. Now, I own the Player's Handbook... and that's it. I have no idea whether and alienist is someone like Ripley, or Mulder, or a girl who is into tentacle sex (you forgot to add that the +2 charisma bonus applies to kinky girls and boys as well,by the way).
This is another item that makes you want it, to keep it, and drives you mad. And costs your soul. It is not bad though. Go to Comment
All in all, this is a decent item, though I am familiar enough with D&D that the details are not a problem. It relies too heavily on system specifics to describe its powers.
The Outsiders Drag Away part I would replace with Outsiders _try_ to drag them away, which would be much more interesting. They might in fact try multiple times until some great confrontation. I would also cause just about all knowledge, spells, etc, gained from this item to be tainted or otherwise problematic. Yes they work, and yes they are powerful, but there are unfortunate side effects to their use.
The city of Nausopol is built on stilts. Lots of very sturdy stilts and butresses, of course, because it rises about five hundred feet from the ocean. Even the most terrific of storms is only heard in the city as a distant cacophony of blasts as waves strike the solid stonework fathoms below. It has never been attacked because of its isolation and impregnability.
It's not a place for the faint-hearted: vertigo and sea-sickness are not desirable traits. But when you are standing in the middle of the city there is no way you could tell that you were standing above an ocean, separated only by a gulf of air and a few stones.
A thousand steps lead down from Nausopol to the floating docks. These docks are pitch-coated wooden and can be raised by winches during squalls. Trade with other cities and countries is good: Nausopol is built over a sunken atoll whose minerals are still mined by divers, and it was from this that it originally derived its wealth.
But the principal method of getting to and from the city is by riding the giant sea-eagles which have been captured and bred for that very reason.