Su Mo sighed inwardly. He had been taking things for granted. Ancient Lán City had existed in the Barren Domain for so long and was explored every year. No matter how many treasures it once had, they were probably all gone by now!
"Green Fire King, are there any undiscovered treasure grounds left in Ancient Lán City?" Su Mo asked Green Fire King.
"Yes!"
Green Fire King immediately nodded. "There are indeed several treasure grounds in Ancient Lán City that have yet to be explored. They are all shrouded by powerful array restrictions, and even Martial Royal Realm experts can do nothing about them!"
"Oh?"
Su Mo's eyes lit up at this. "Then take me there quickly!"
"Alright!"
Without another word, Green Fire King led Su Mo flying toward the depths of Ancient Lán City.
Quite a few places within Ancient Lán City flickered with the light of arrays, clearly all treasure grounds containing some sort of secret.
However, Su Mo did not inspect them one by one. Following Green Fire King, he flew deep into the city and arrived before a damaged ancient hall.
This ancient hall was incredibly vast, spanning several miles. It resembled a palace, yet it was constructed from some unknown rock, its entire body tinged with green and exuding an ancient, majestic air.
The ancient hall was severely damaged. Part of it had already collapsed, and the entire structure looked as though it might topple at any moment.
There were many people inside the ancient hall, bustling about. Clearly, they all knew this was a treasure ground and hoped to obtain treasures here.
"Young Master, this place was once the main hall of an ancient faction. The treasures within were all taken by those who came before, but there is one supreme treasure in the