At the beginning of a story, if a gun appeared, then its bullet was bound to be fired before the ending.
This was the theory of "Chekhov's Gun," and it applied here as well.
The two news reports in the newspaper were that gun.
And the door that had appeared beneath the tree was the bullet already fired from its chamber.
This also showed that Wonderland Authority had planted hidden secrets from the very beginning of the Uriel Instance; now, it was merely bringing those hints out into the open.
Thus, Luigi's guess was most likely correct.
The character "Uriel" was very likely the crucial link connecting the two instances.
Angel had actually deduced this long ago. At the time, though, he lacked the crucial information provided by the newspaper and could only rely on logical inference. Now, the newspaper's appearance happened to confirm his original judgment.
They still did not know, however, what connection Uriel had with Mist Swamp.
Since they could not obtain any further information from the Uriel Instance for the moment, Angel decided to part with Luigi for now and go outside the Mist Swamp Instance to investigate its internal situation.
Before long, Angel arrived before the crystalline construct outside the Mist Swamp Instance.
Looking at that strangely shaped tree, he unconsciously recalled the withered tree within the Uriel Instance... He gently shook his head, thought no further about it, and reached toward the tree before him.
The next moment, the scene within the instance transformed into a Box Garden and appeared before him from a godlike perspective.
With only a cursory glance, Angel froze slightly.
He had originally wanted to find Kemei and ask whether he had made any new progress over the past two days, but at a glance, he noticed something was wrong.