Chapter 392: In the Mirror?

In Duncan's perception, two anomalies had caught his attention.

One of the markings, of course, came from the Oak.

The ship, which he had once engulfed in flames entirely, was still emitting a strong "presence," like a blazing fireball wandering within his senses, yet he still couldn't pinpoint the ship's actual location—every time he tried to determine the Oak's position, he would get a strange and blurry result. This result indicated that the Oak was somewhere next to Frost City-State, a place already blockaded by the Mist Fleet and Frost Navy.

The other "problematic" marking was on Gatekeeper Agatha.