What is the Dead Trove?

The Cauldron Made many objects of power long ago--weapons of unrivaled might. Most of them were lost to history and war. When Amren went into the Prison, only three remained. Some claimed there were four or that the fourth had been Unmade. Today's legends only tell of three: The Mask, the Harp, and the Crown. The Mask can raise the dead. The Harp can open any door, physical or otherwise--perhaps between worlds. The Crown can influence anyone even piercing through the strongest of mental shields. The only flaw of the Crown is that it requires close physical proximity.