Ed watched without blinking, inexplicably feeling like he was watching juggling on the side of the street. The strange metal actually hung in the air, as if it was captured by flames, and even if it melted, it could not escape, but was like a ball of temperless soft mud, kneaded into various shapes.

Isis rolled it into a long strip and quickly wound it around the icicle, and there was a loud sound, and a very round circle of dark gold took shape in a mist of water.

Ed was dumbfounded.

He felt that he still preferred the little rings that were hammered with a small hammer a thousand times, and this way of Is's reminded him of the crispy fried gold dough sold on the streets of Visa, which was delicious, but he didn't want to wear it on his fingers......

While he was in a daze, while Iss waited for his envy, adoration, and praise, Nana leaped and tilted her head to bite the icicle. The ice, which was said to "never melt for thousands of years", shattered in an instant, and fell down along with the dark gold ring that was still on it. Nana twisted, grabbed it accurately, landed, ran, slammed out of the door, and in one go, as fast as thunder.

Isis smiled gloomily and did not chase after it. A moment later, the little dragon's earth-shattering cry suddenly sounded.

Its tiny fangs, which had not been matched since birth, collapsed.

.

Even though Isis repeatedly assured that Nana's teeth would soon grow new, Narya scolded him and detached the dark gold ring to put Nana on its tiny paws.

Although it can't be gnawed, at least it still has it, and it can be licked at any time, which is also a comfort to the poor little dragon who cries until he is about to die.

Tess rubbed over to Is's side and tilted her head to look at him, meaningful: "I'm really rich......"

Isis boldly gave her a small piece of dark gold, and secretly glanced at Naria several times, but did not get half a look.

Ed had a new understanding of the hardness of dark gold, after all, even Nana's teeth couldn't leave half a tooth mark on it. In addition, the key to enter the Black Rock, which he has been tinkering with for the past few days, seems to have been found.

"Is your ice capable of changing into various shapes?" he asked Iss when he got back to the room.

"It's not like you haven't seen it. Realizing that "having money" is not everything, Isis is a bit listless.

"What if, let your ice poke into a keyhole and take the shape of a key......" Ed rubbed his hands, "it can be done, right?"

Isis squinted at him and nodded.

"And in the ice, I mean, inside," Edby, "can you do it with some runes that aren't particularly complicated?"

Isis nodded again.

"How about making the Ice Key change with runes and spells?"

Isis frowned: "Why is it so troublesome!"

"After all, it's the key that opens the gates of Black Rock......" Ed sneered.

Ikabird remembered the runes in the key and could draw its shape, but it wasn't easy to copy. The key was said to change, but Ed couldn't do that, and the spell that went with it had to be inserted in the correct place before it would take effect.

"Gems are stones, and stones are like life in the hands of dwarves, but others just cannot. In fact, I asked Mock, and they can't do it now. Ed explained dejectedly.

He hadn't thought much about it before, but now he realized that ice, in Is's hands, also seemed to have life, and it was not the same as ordinary ice - it had the ability to withstand magic.

"You can give it a try. "But if you can really get into Black Rock...... Can I take everything that belongs to my mother?"

That's not an over-the-top request.

.

A few days later, standing outside the Black Rock Gate, were Ed, Is, Terry, Filly, and Mock...... and Nana.

Nana was brought because of a sentence that Tess said intentionally or unintentionally: "Dwarven mines, there are places where you have to be a little guy to get through." ”

She was talking about herself and Norvi, and Ed was willing to go on another underground expedition with the experienced ones, but before leaving, Tess received Rosa's letter and struggled for a while before finally choosing friendship - after all, Rosa Latus rarely asks for help.

And Nana, not only small, but also regarded by Mock as a symbol of luck, after all, without it, they would not have been able to drag out those missing dwarves and elves from the other world.

The little dragon, who had gone out for the first time, squatted on Is's shoulder, stretched his neck to look left and right, but quickly lost interest. There are black and bare rocks far and near, and it is really boring to look at it for a long time.

They waited until dark, and when the moon rose, the stone door carved with a huge relief that was supposed to appear in the moonlight did not appear.

This was an accident they had expected, after all, there was now an extra moon, and the light and angle were different, and Ed had a word in his mouth, and according to the results of his previous calculations, he moved around against the two moons and a stone wall, and finally stood in the right position.

Under the moonlight flowing like water, it seemed that an invisible mist was gently brushed away, and the dwarven warriors carved out of the rock appeared in front of them, standing silently with half-closed eyes, as tall as giants in ancient legends, the black stone gate between the statues was more magnificent than the castle gate of any kingdom of mankind, and the history of the black rock dwarves was engraved from top to bottom, but the three people, two dragons, and one dwarf all stared at each other for a while, but they couldn't find any keyholes on it.

This door, not even a crack in the door, is like a decoration carved into the stone wall.

Ed begins to miss Tess - a thief can always spot the mechanism that opens a door faster than anyone else.

In the end, it was Iss who found the hole. It is hidden in the highest relief, a half-exposed star.

"Wait. As he prepared to act, Mock suddenly spoke, "There's one more." ”

He raised his finger to show them—a little lower, in the horn of a dwarf raised high.

"Why do they have to open the keyhole so high?" Filly wondered, "Do they have to climb that high every time they open the door?"

“...... The dwarves themselves do not rely on this to get in and out. Mock said.

Realizing that he had made a fool, Filly rubbed his chin in embarrassment, and Iss impatiently slapped his foot on the ground.

"That's not the point," he said, "and the point is, which one is right?...... There won't be more keyholes, will they?!"

They searched for a while more to make sure there were no other holes in the door, and Mock pondered for a moment and chose the star, but did not say why.

Isis didn't ask much, and he couldn't be relied on if he was wrong anyway.

He flew.