Whenever Du Yu had searched for a while, he would descend once more to the moment when he had started and resume his search in another direction.
He did not dare rewind time too far. After all, the "Cause-and-Effect Reversal Formula" sounded like something the Immortals had left behind in the Elder Era.
With something like that, transcending the Three Realms, no one could guarantee that it had not suddenly appeared just before Xu Fu arrived.
For several months straight, Du Yu scoured almost every island in the East Sea, yet still failed to find the so-called "Cause-and-Effect Reversal Formula."
Searching such a vast region for something he had never seen was simply too difficult.
Du Yu did not even know the size or shape of the "Cause-and-Effect Reversal Formula," nor whether it was a scroll or a book.
Several more years passed. Du Yu searched even the caves on the islands, but still came up empty-handed.
He changed his mind.
He put away his flames and became "time," drifting beyond the world as he went in search of Xu Fu's fleet.
Compared with a tiny formula, the fleet of several thousand people led by Xu Fu stood out clearly on the sea.
It was an enormous fleet.
It was hard to imagine that China's shipbuilding techniques had already become so advanced during the First Emperor's reign.
Du Yu looked out and saw roughly fifty large ships.
These ships were different from ordinary vessels. On each one, slightly aft of the center, stood a structure resembling an ancient palace.
Each structure had three stories and looked like a small tower.
If Du Yu remembered correctly, this kind of vessel was called a "tower ship." It had developed during the Spring and Autumn period and become prevalent during the Western Han