From the Ashes: The Future of Arda
Located at the bottom of a canyon below Mulhoránd’s Spire, the Nexus is an energy of unknown power and origin.
Although never fully proven, it is highly assumed that the Nexus augments spells.
When encountering Levith and the mages in the Temple of the High Priest, they informed the team that the Nexus was responsible for the time loop the citizens of Mulhoránd experienced.
The Nexus was held in the caverns below the Spire. Though not directly seen, it’s energy was viewed glowing from the depths of the caverns and channeled into a conduit at the top of the canyon.