```
Following Darkrai, Fang Yuan and the others entered deeper into the island once again.
The depths of Nightmare Island were shrouded in a heavier mist, but as they approached a cave, the mist gradually dispersed.
This cave had been visited by Fang Yuan and his companions before; the entrance was not tall, and both sides were flanked by large boulders. Inside, there was nothing but moss that filled the crevices between the rocks, blocking out all light.
Darkrai, who was in front, turned its head to look back at Fang Yuan and his companions, its blue eyes focusing on them once again. The next instant, a shadow vortex appeared not far away, resembling a passageway that seemed to connect to another space.
Seeing this, Glutton, who had returned to its Gengar form, was slightly startled. It could not understand this maneuver at all; Darkrai's mastery over shadow energy far exceeded its own.
"Is it a different space... or simply a passage?"
Before Fang Yuan could judge, Darkrai's figure slowly sank into the ground and signaled for Fang Yuan and his companions to follow.
...
"So dark..."
After following along once again, Fang Yuan spoke almost reflexively.
A beam of light streaked across the space, as Rotom, with its lighting function activated, illuminated the surroundings, serving as a source of light.
In addition to that, Monferno stoked the flames on its head to burn brighter, and including Self-detonating Magnetic Monster, which temporarily polished its body to serve as a light source.
"It seems... It seems to be ruins, Rotom!"
After a moment of illumination, Rotom, through scanning and analysis of the surrounding environment, concluded that they had likely been brought to some ruins by Darkrai.
"Bwoo..."
Meanwhile, with Darkrai's interference gone, Eevee and the other Pokemon judged that these ruins were not a different space, but rather underneath the island; they had just been hidden by Darkrai all this time.
Eevee extended its paw pad to touch the wall. Although the wall was filled with ancient traces, it seemed to be devoid of any dust...?
"Darkrai, is this the place you wanted to bring us to?"
In the darkness, Darkrai nodded its head towards Fang Yuan and the others; this was where it usually lived, and even if people set foot on Nightmare Island, it was difficult for them to find this place.
The reticent Nightmare God, not even willing to transmit a single thought through mind induction after they had descended, continued to lead Fang Yuan and his companions forward.
"All shrouded in mystery..." Fang Yuan muttered to himself, waved to the Pokemon, and walked through the dim ruins. Not knowing how long had passed, he suddenly screamed out loud, frightened by a vicious-looking stone carving on the wall.
A creature with sharp scythes hung upside down on the wall, but it was now petrified and seemingly had been for many years; it closely resembled Scyther.
Ever since seeing the first fossil, fossils could be seen everywhere in the ruins—on the walls, on the floor; the place seemed no less populated by stones than the outside world, with bizarrely shaped rocks everywhere...
"Darkrai, do you know a Trainer named Da Wu?"
"?" The leading Darkrai was momentarily blank. Da Wu?
Who? Why would Fang Yuan suddenly ask this?
"It's nothing... I just saw you've collected so many fossils, it's quite moving," Fang Yuan said.
Darkrai was silent for a moment, then continued onward.
Before long, it arrived in front of a stone platform.
On the stone platform, there was a Pokemon egg.
Gazing at the Pokemon egg for a moment, Darkrai slowly took it and moved to Fang Yuan's side, handing the egg over to him...
Fang Yuan blankly accepted the Pokemon egg... Wait a second, a Pokemon egg???
Why would there be a Pokemon egg in a place like this?
"Darkrai, you want to give this to me?"
Darkrai nodded its head.
"It's not your egg, is it?" Fang Yuan asked.
```
Darkrai: ???
Darkrai shook its head.
This Spirit Egg had a mysterious origin; it had unexpectedly appeared on the island decades ago. Yet, as the years went by, there remained no signs of hatching.
If it had been an ordinary Spirit Egg that had not hatched for such a long time, it would certainly be dead, but Darkrai could clearly feel that the egg contained life fluctuations all along.
Darkrai had begun to suspect whether its own Nightmare Realm was preventing the Spirit Egg from hatching. After meeting Fang Yuan, it decided to give him the special Spirit Egg that it had found by chance and let Fang Yuan take it away from the island to attempt hatching it.
"This egg..."
Fang Yuan continued to stare blankly at the Spirit Egg, trying to communicate with it using the Power of the Heart, but got no response. Even after inspecting the pattern on the egg, Fang Yuan couldn't figure out what type of Pokemon's egg it could be.
"Rotom, can you identify what kind of Pokemon's egg this is?"
"Rotom..."
Rotom had already begun its examination before Fang Yuan asked, but it, too, wore a puzzled expression. Its database contained a complete Pokedex of Spirit Eggs, and even though each egg's patterns could vary slightly, there was a general pattern to follow. However, this egg...
"Unable to determine... Unable to determine... This egg must belong to an unidentified species of Pokemon," Rotom concluded.
"I see..." Fang Yuan murmured thoughtfully, cradling the egg while Eevee and the others looked on with curiosity in their eyes.
"Alright then, Darkrai. I'll take the Spirit Egg with me. If it hatches, I will take good care of it," Fang Yuan said.
Upon hearing Fang Yuan's response, Darkrai nodded again.
"But on another note, besides this egg, is it just you living on the island all by yourself?" Fang Yuan inquired.
Darkrai nodded.
"Don't you get bored?"
Darkrai shook its head.
"..." Fang Yuan.
Damnit, communicating with you is so exhausting. Can't you give any reaction other than nodding or shaking your head?
"Bwoo bwoo!!" Eevee couldn't help asking. Staying in such a place would be fine if there were other Pokemon, but for a solitary Pokemon to remain here for decades, even centuries, it's impossible not to get bored.
Darkrai didn't nod or shake its head this time, but after a brief silence, it casually looked at a fossil.
It floated slowly towards the fossil, gently tapped it with its claw, and moments later, black ripples appeared on the fossil, and waves of the "Dreamland" spread out, enveloping Fang Yuan and the others.
The moment they were enveloped by the "Dreamland" waves, each Pokemon instinctively prepared to resist, but they were unable to...
"..."
As the black waves of the "Dreamland" passed through them, Fang Yuan opened his eyes again and, slightly startled, thought, here we go again???
Fang Yuan looked around and realized he was floating in midair, and next to him, Eevee, Self-detonating Magnetic Monster, Monferno, Glutton, Luo Kuo, and the others were also floating. It seemed they had all been pulled into the same dream.
Although they were initially nervous, once they saw the environment of the dream and realized they still had their conscious awareness, Fang Yuan and the others calmed down.
"This is..."
Suddenly, Fang Yuan noticed something unusual about the dream. After scrutinizing the surroundings again and recalling Darkrai's action just moments before, his expression turned to one of incredulity.
"This is, prehistoric times??"
Numerous Fossil Pterosaurs were freely flying in the sky, and some of the Fossil Pterosaurs maintained their Mega Evolved forms. On the ground, there were some dinosaur-type Pokemon that Fang Yuan did not recognize walking about. In an instant, Fang Yuan thought of a term, "back to prehistoric times."
In the PM anime and games, some scholars believed that the look of Fossil Pterosaurs after Mega Evolution was their true appearance in ancient times. If what he was seeing was real, then those scholars were half right.
So that means...
"Just now, Darkrai touched a fossil with its claw, and then we ended up here. Does that mean Darkrai has a way to enter the Fossil Dreamscape?"
As Fang Yuan was making his judgment, Darkrai's figure also slowly appeared in the sky of the ancient dreamscape. This was its explanation—that even being a lone Pokemon on Nightmare Island, it could use its abilities to interact with different things through those fossils.
Over the many years, it had spent day after day with the dreams of fossils.