[[Rumblecusp]] is the center of a lot of arcane ley lines due to the presence of a lot of [[Brumestone]] under the ground. Brumestomes are intensely magical stones that act a bit like residuum in that they enhance magic around them, but in a strange or unexpected way. The presence of brumestones has led to several events happening on Rumblecusp: - [[ttrpgs/The Slayers Five/Tiamat]] was drawn to choose it as a place to imprison [[Vokodo]] and his [[Dragonleaf Tree]]. - [[Mother Krangor]]'s alchemical experiments were significantly furthered by the magic in the air, causing her to be able to brew the mist of forgetfulness. - Portals sometimes open on Rumblecusp to different planes: - [[ttrpgs/The Slayers Five/The Feywild]] - [[The Shadowfell]] - [[Elemental Plane of Water]] - [[Elemental Plane of Fire]] -