Postponing the Inevitable

I've determined the cause of the instability! Azeroth's ley lines are being redirected to the Nexus. It's fascinating! If only I could spend the remainder of my days studying this anomaly.... Sadly, I must focus on the immediate crisis. The influx of arcane energies is tearing a rift between dimensions. Deep inside the Nexus, the fabric of our universe is being weakened. I cannot stop it, but I've discovered a way to slow it down. Take this into the Nexus and activate it near the forming rift.