Qing Yu Island was one of the important strongholds controlled by the Golden Roc Clan. Many Mystic Crane Woods were planted on the island. Mystic Crane Wood that had grown for more than a thousand years was the primary material for refining flying spirit boats, and was greatly favored by Artifact Refiners.
In addition, Mystic Crane Wood could also be used to set up large Wind Attribute formations.
The Golden Roc Clan traded high-year Mystic Crane Wood with other forces in exchange for the Cultivation Resources they needed. Every thousand years or so, the Golden Roc Clan had to offer the Essence Fire Race a batch of high-year Mystic Crane Wood.
The Golden Roc Clan had sent three Void Refinement Cultivators to guard Qing Yu Island, and had also established four Tier 6 Formations.
With Qing Yu Island at the center, several thousand islands within a radius of five million miles all fell under its jurisdiction. Mystic Eagle Island was one of them, and quite a bit of Mystic Crane Wood was planted there as well.
Yu Shiyi had cultivated for more than three thousand years and was currently at the Late Spirit Transformation stage. He was responsible for guarding Mystic Eagle Island, where three other Spirit Transformation cultivators were stationed.
The Golden Roc Clan had attacked the Human Race, so Mystic Eagle Island had also strengthened its defenses to prevent a sneak attack by the Human Race.
In a certain secret chamber, Yu Shiyi sat cross-legged on a green meditation cushion, his eyes tightly shut as a layer of green light surrounded his body.
The secret chamber suddenly shook violently, as if an earthquake had struck.
Yu Shiyi opened his eyes, his brows knitting tightly.
He took out a green light-shimmering formation plate and cast a Hand Seal. A