Chronicles of Khaldun: Crux of Eternity
The last living guardian of Argent, the ancient wizard Obanar has maintained the city even as it lay forgotten by the outside world. Aided by the last torrian in the city, Rrowthar, Obanar has summoned the Shields of the Sorrowfell to Argent so as to enact the city’s mission once again.
Also, credit where credit is due. Image source:
Dillon, Julie (2009). Revenge of the Giants, 11.
(This particular example was retrieved from here: http://www.wizards.com/DnD/Article.aspx?x=dnd/4art/20090916)