Thirty miles inside the Mournland, 100 miles south of the Saerun Road, is a mineshaft into a low hill. The only sign on the entrance is a Cannith seal, marking the secret facility below as that house’s property. Although Whitehearth was well known during and before the war as an ancestral Cannith forgehold and weapon research laboratory, few know what wonders and horrors this place holds.

Merrix d’Cannith of Sharn has information indicating that Whitehearth’s artificers enjoyed a breakthrough just before the Mourning. He has dispatched teams to locate Whitehearth and recover its contents. So far, none have returned.

Inside Cyre, Whitehearth might be one of the oldest and most well known of Cannith forgeholds, but it is not unique. Several more Cannith facilities still exist in and under the Mournland. Their purposes might be different from Whitehearth’s, but their treasures still await liberation.

Magic of Eberron

Whitehearth was the facility where House Cannith created magic weapons to sell to each of the five great nations during the Last War. Prior to the war’s end, Whitehearth was situated in the nation of Cyre. Spells and items considered too dangerous or volatile to test near civilization were developed at the facility as well. While no one is sure whether the magewrights, artificers, and wizards present in the facility were responsible for the Day of Mourning, the energies from that terrible event certainly penetrated the facility’s confines. Most of the Cannith family members and staff perished instantly, while others quickly followed when the destabilized magical experiments cycled beyond control. Now chaos rules the halls of Whitehearth.

Word has spread that a recent expedition, commissioned by Baron Merrix, has successfully returned from Whitehearth. If true, it might mean that the wider facility is now open to exploration, beyond the mere top-level laboratories that the Merrix-sponsored expedition visited in its short foray. Perhaps new schemas wait inside Whitehearth’s halls to transform the magic of artifice.