Chourst's inquisitiveness once drove him to visit Mechanus, although he barely survived the encounter; Primus himself showed up to deal with the slaad after he had worked enough mayhem and disorder on the orderly plane, and still seeks justice against Chourst.
Dweomerheart is the fortress of the Goddess of Magic, Mystra, located in the realm of Nirvana.
In the third edition version of the Manual of the Planes, formians are implicitly described as being the primary inhabitants of both Arcadia and the Lawful Neutral Outer Plane of Mechanus, which is in contrast to the earlier Advanced Dungeons & Dragons Second Edition, where the Modrons were the exemplar Lawful Neutral race and the primary inhabitants of Mechanus.
Once there, the characters encounter formian settlers from Mechanus, whose hive can serve as a base of operations while preparing an assault on the Iron Fortress.
Pholtus is said to reside in The Path of Law, a domain in the Clockwork Nirvana of Mechanus.
Remnis lives in the realm of Goldenroost on the plane of the Beastlands, but he travels between the Elemental Plane of Air, the Outlands, Mechanus, Limbo, Elysium, and Arborea.
Mechanus |