This is a Boss Fight - Come Prepared.

The rift above the Wyrm’s March remains open, pulsing with a dying light that draws the world toward stillness. Now, the breach has grown into a wound between planes — a gate to the void itself. From its edges spill silence and darkness that devour the sky, dimming stars and unraveling sound. The last scholars of Gath Tekul believe the only way to save the world is to pass through the tear and seal it from the other side. Yet none who’ve entered have returned, and their voices still echo faintly across the night. The time has come for new heroes to cross the threshold — into the space between worlds — and end the spreading emptiness before it consumes all light and life.