Your Move, My Lord

The second largest fortress after Lenklock fortress is Baldrig Fortress.

Situated in the west, Baldrig Fortress is marked by its unusual hotness, sandy terrain, and presence of underground trap volcanoes that have engulfed witches that have tried to invade it in the past. 

The walls of the fortress are by far the tallest, and are reinforced with iron ore and steel every year. Research has shown that no witch has been able to resist or survive the volcanic traps.

- The Defense Book on Dragonia's Fortresses (Classified)

"They are very big, and very good." Then with his eyes looking distant Xander added, "so good that my mother never wanted to part from them…not even for her own son."

That gave Vinnandra a pause. She had always suspected that there was an entire web of complexities to Xander's relationship with his mom, but abandonment wasn't one of the things she envisioned.