LONDON, Sept. 22, 2010— -- Nearly a century after the Titanic plunged into the murk of the Atlantic Ocean, a new secret has been revealed that could upend the existing story of how the ship sank.

If you want to buy Relics, gestures, chalices, or even garbs, you're going to need a whole lot of murk. While runes are what you will need to buy things while in an Expedition, murk is what you ...