The Rilark is a keep built in the motte-and-bailey style. While it is several miles from the City of Dragons, the tower is several stories high on top of the motte (a steep hill) such that it is well within sight range. The bailey has been overrun by mindless undead, but the keep itself is host to a squadron of Wintersbite clan soldiers, lead by Mordrin and Lieutenant Prask.
The tower of the Rilark was built hundreds of years ago by the dragonborn of the CoD on top of much older dwarven ruins. The original purpose of the Rilark has been lost, later, it was used as a winery and home for a minor noble from the City of Dragons.
Since the bailey surrounding the tower is overrun, there is only one sane way to enter the Rilark – through the tunnels.
The basement floor of the Rilark contains a large quantity of old wine, three prison cells, and a buried, inactive army of Warforged dating back to the Nerath Empire.