The Adamant Citadel »
The Adamant Citadel is the home of the Iron Sisters. The Citadel is well-Protected, hidden, isolated, and is open only to the Sisters and other femal Shadowhunters in good standing with The Clave.
Even more hidden than the Silent City, the Citadel's location remains unknown, despite its age. It is reached through one of a numver of entrances scattered around the world, the oldest of whichis found on the lowest floor of the Armony in Alicante. The Portals lead to the volcanic plain of the Citadel, outside the fortress walls.
The actual Citadel buildingcan be reached only by crossinga drawbridge. To enter, the female Shadowhunter must cut her palm, draw blood into the chasm separating the fortress from the plain, and receite the motto of the Iron Sisters, "Ignis aurum probat". This causes a flash of blue light and the drawbridge to lower.