While Lin Sheng immersed himself in arduous cultivation.
Greenwood City.
A black-clad figure as thin as a reed appeared outside the city. Looking at the damaged walls that had yet to be fully repaired, the black-clad figures' eyes flickered. A rectangular piece of black jade slowly burned in one figure's hand, releasing wisps of invisible smoke.
Veinlike patterns writhed across the surface of the black jade, uncannily lifelike.
This was the Soul-Tracking Incense specially made by the Crimson Prison Society. It was extraordinarily sensitive to fluctuations of inferno power. As long as even a trace remained, it could detect it clearly, even months later.
Soon, a plainly dressed figure broke away from the stream of people leaving Greenwood City. In a few swift movements, the figure appeared before the black-clad figure. Their outer clothes rapidly corroded away, revealing the same black attire beneath. They, too, held a stick of Soul-Tracking Incense.
"We can confirm that a remnant of the Oath of Embers lived in Greenwood City for some time. There's also an exceptionally pure fluctuation of inferno power that no one in the Oath of Embers could possess. It should belong to the Extradimensional Creature Lord Sha Lu mentioned."
"It looks very likely that the Extradimensional Creature has become involved with the Oath of Embers remnant."
"Still, there are two more places we haven't investigated. We can draw our conclusions after checking them."
The two black-clad figures exchanged their opinions, then vanished.
Several hours later, the two appeared in another danger zone near Greenwood City-the same place where Marshall and the others had died. The patterns on the Soul-Tracking Incense in their hands grew clearer and more active.
They exchanged a glance and nodded, then swiftly raced in another direction.
Two hours later, the two black-clad figures appeared again in