Diamond Kingdom

A long, dim tunnel stretched ahead, a thin chill wafting from its entrance and bringing a faint coolness.

This was the entrance marked on the map Xerneas had given Xia Yan.

It was tucked away in a very inconspicuous corner.

Even if ordinary people saw this hole, they probably would not want to investigate it.

And judging from the route depicted on the map, once someone went in, they might never find their way back out. It was as complicated as a maze.

"Let's go."

As usual, Xia Yan had Eevee take the lead.

"Vee~~"

Eevee shook out its fluffy fur and padded into the tunnel with light steps, completely unconcerned about any danger it might encounter.

Xia Yan smiled and shook his head before leading the other little ones after it.

Just as Xerneas' map had shown.

The tunnel's interior was a bewildering maze of paths, with a small fork every few steps and a major branching route every dozen or so.

Even with the map, Xia Yan found it difficult to distinguish the directions and routes, let alone anyone without one.

Besides.

The seemingly barren underground tunnels were not devoid of wild Pokémon.

Along the way, Xia Yan and the others encountered quite a few Rock-type Pokémon.

It seemed that Rock-type Pokémon were the most numerous inhabitants of these underground tunnels.

That undoubtedly meant that these ordinary-looking, even barren tunnels contained abundant minerals. Wild Pokémon would not lie about such things.

"Vee!!"

Suddenly.

After they had walked through the tunnels for an unknown amount of time, Eevee dashed excitedly toward a corner.

In the darkness of the tunnel, the faint glimmer of light seemed especially conspicuous.

Xia Yan narrowed his eyes but did not stop Eevee.

Before long.

The little Eevee proudly presented him with a thumb-sized, glittering