Duke's only current means of obtaining Faith Power was through the Light God Statue.
He could not possibly carry away such a massive Light God Statue. Otherwise, the people of the Light Church would likely fight him to the death. Even if he was the so-called Child of Light, it would not make a difference.
If he returned to the Wizard Plane and still could not find another way to obtain Faith Power, then he could only wait half a year before returning to the Oracle Plane. That was comparatively much less convenient.
Duke prayed once more. After establishing a connection with the Light God Statue, he gained another trace of Faith Power.
After doing a quick calculation, he estimated that at this rate, he would be able to fully recharge the Coordinate Earring in around half a month.
If he could stay here and pray continuously, the process would be even faster, but that would seem far too suspicious.
Duke discovered that only his prayers seemed to grant him Faith Power. Believers like Daili provided Faith Power to the statue, while he did the opposite.
Regarding Duke's identity as the Child of Light, only Saintess Daili and a handful of bishops within the Light Church knew. None of them would ever betray the Light Church.
They would not leak any news, lest the Four Gods Church target Duke. After all, the Child of Light was the future of the Light Church.
Three days later.
Duke had just returned from the Light Church when he saw Robert standing outside his shop. He appeared to have been waiting for some time.
"Lord Duke, I've gathered everything you wanted," Robert said. He had been run ragged over the past few days.
"Let's talk inside." Duke nodded.
After returning to the backyard, Robert