As Chen Ping'an continued to fly, a towering, majestic pass city of bluish-black gradually grew larger in his vision.
The surrounding mountain ranges, rolling endlessly and rising in strange, steep grandeur, seemed reduced to ordinary little hills before this colossal city.
Northern Mountain Pass!
Azure Cang Realm's foremost mighty pass!
In terms of sheer city size, it was second only to Azure Cang Province City, where the Azure Cang Prince Manor—the heart of the Azure Cang Realm—was located.
Northern Mountain Pass stood majestically amid the mountains, surrounded by a host of garrison cities guarding it from all sides. Their walls rose and fell in varied layers, forming a grand and intricate network of defenses.
"Northern Mountain Pass. We've arrived."
Chen Ping'an gazed into the distance at the immense pass city before him, wreathed in thin mist. Bluish-black and towering, it stood between heaven and earth, every inch of it steeped in the weathered solemnity of ages.
Formations and restrictions covered the entire pass, as well as the long stretch of garrison cities surrounding it.
Dark cyan streams of Cloudy Glow light enveloped the great pass city and the garrison cities protecting it.
The light was faint, yet it carried a power that could not be taken lightly.
"This is..." Chen Ping'an's expression tightened slightly, his gaze deepening. "A Fourth-rank Formation."
Since beginning cultivation, this was the first time he had faced a fourth-rank restriction formation—and one on such a massive, clustered scale.
Before coming here, he had already gained a detailed understanding of Northern Mountain Pass.
Northern Mountain Pass was a towering stronghold, guarded by eighteen garrison cities. Each garrison city had its own Defense Envoy and belonged to an administrative system directly under the Northern Mountain Province Town Pacification Office.
During large-scale deployments, matters were reviewed, decided, and managed