Five items: a ring, a crown, a staff, an orb and a dagger. These five items are needed to unlock the Sovereign Gate that controls the time loop. The lich has one, the crown (mana battery), and the dagger is held by the treasury of the king of Eldemar. The orb (pocket dimension) is located in Koth. The ring is held in the Ziggurat of the Sun in the Xlotic desert, and the staff is somewhere in Blantyrre. Zorian can cast a spell to find them if he is close by. They appear to be powerful magical items and each have different abilities designed to help with the "time loop".