A cursed moon hurtles through the multiverse, crashing from one plane to the next, never at rest, forever fleeing a catastrophe that predates existence itself. Behold the Planebreaker! The Planebreaker visits all planes, all demiworlds, and all dimensions. Some are known to sages and planar travelers. But in a multiverse stretching across epochs, the number of previously uncatalogued planes is vast. The Planebreaker races through all of them, in time, and the Path that trails behind it creates a route that links them all.