It's really so coincidental

That was a waterway; they could not enter into the city through here.

The Empress wore a face veil. She was too beautiful, and with their present strength, they were still too weak in the Celestial Realm. If she became targeted by a profligate young master of any clan, there would be great trouble.

Of course, they should avoid using the Black Tower as much as possible. This was the Celestial Realm. Perhaps Severing Mundane Tiers or Dividing Soul Tiers could see through the secret of the Black Tower.

They circled around the city for at least half a day, and only then did they find a main road which led to the city.

This was really a major route, being indescribably wide. Really, it was not inferior to that great river at all, and extended to the city. They could see that the city gateway was also similarly wide. Was this really a gateway into the city? It was practically an insurmountable barrier.