Luca was just as disappointed as Ollie.

Since this box could not transport living people, and he was an accomplice to the theft of those boxes of candied fruits, he felt that he might need to absorb the power of change in it into the spiritual starry sky, and by the way, he could ensure that the business that disturbed the black market would not be harassed again. Black of the Sunset Islands once said that he was willing to pay a lot of silver for it.

In good conscience, this act is a bit like robbery. However, the magical energy is not the original product of the ocean world, and he, a mage, absorbs the power of change, which can be regarded as a return to the original owner to some extent. Of course, the goblins would certainly not agree with him, and Lukka had no intention of consulting Gavin.

Besides, the words piracy and robbery are inherently linked.

With that in mind, Lukka reached out to the box again. Just as his fingers were about to touch the inner wall of the box, an idea popped into his head.

"I have an idea!" he said, withdrawing his hand, turning around.

Ollie held on to the ladder below, looked up and said, "Don't spin around on it, I'm going to be unstable!"

Lukka quickly climbed down the ladder and said with a smile on his face, "I have thought of a way to go back." ”

"Huh, what's the solution?" asked Gavin, too.

"Didn't you say last time that manned excavators need navigation devices to get to the ground?" Lukka pointed to the big box next to him, "This box, although it can't transport living people, there should be no problem with sending a navigation device up, right?"

Gavin lowered his head and thought for a while and said, "Theoretically, this is the case, but someone needs to use it to activate it." ”

"That's good, when Daniel comes back, you tell him the key points of the operation, and let him go back to activate it. At this point, Lukka turned his head to look at the box again, "I don't know if this box is lethal to the ghost, if Daniel can teleport from the box, it will be much more convenient than if he himself is floating among the rocks." ”

Ollie looked at him worriedly, "Have you even become a goblin in your way of thinking? ”

"I'm just going to talk about it. Lukka scratched his ear.

Gavin looked embarrassed, and didn't dare to oppose Luca directly, just stirred the fingers of his two hands together and rubbed them around.

"What? Do you think there's something wrong with this plan?" Luca asked.

"The plan is doable, but it's just ......," Gavin said, "it's just that the excavator isn't idle for the time being." ”

Lukka recalled the excavator's appearance, which was clearly not suitable for rescue of urban ruins.

"Are you using an excavator to dig tunnels in the well area?" he asked.

Gavin nodded: "This machine was originally designed to excavate mine tunnels, and taking you down is just an extra function." ”

"Speaking of which, I have a question. Luca said, "You just said that the tunnel in the well area can only dig about 100 meters a day, but when the excavator takes us down, the speed is much more than that, right?"

"Can that be the same?" said Gavin, a little agitated, "when you bring people down, you just need to dig a way forward, and then you will be filled with earth and rocks." The tunnel must be cleaned and strengthened along the tunnel little by little, otherwise it will be blocked again, so can it be called a tunnel?"

"Okay, okay, technical, I won't fight with you. Lukka walked back to his desk and stretched out in his chair, "You're in a hurry to dig through the tunnel, and you're going to rescue that commando, right? Just let Daniel find them, send them a message back to the surface, and then bring them back when you send us both back with an excavator." ”

There is a final link in this plan, which Lukka did not disclose to Gavin. After he returned to the ground, he planned to collect the power of change from the black box above, and the two boxes shared a magical space, and the effect was the same from either one.

"So, when will you big man come back?" asked Gavin.

Luca was asked this time, and when Daniel left, he was only told to go up and come back after delivering the news, and he didn't say that he would come back immediately, nor did he make an appointment for a time. In case the ghost wants to eat, take a shower, take a nap or something like that, it will take another day and a half.

Moreover, it was not so easy to tell the direction when walking through the rocks, and the first time Daniel followed the excavator all the way down to find this place. But according to Gavin, the passage that the excavator came down no longer exists, and the direction in which Daniel floated up is not the original direction. It's easy to float up to the ground, and it's a needle in a haystack to find a city carved out of the rock.

"I see," Gavin immediately understood what was the problem, "if he can get back and help the commandos get out of the danger zone, I'll agree to follow your plan." Otherwise, you can only wait here, and my 30,000 silver coins will be saved. ”

Lukka didn't just wait, he picked up a pen and paper from the table, and began to write.

The content of the letter is very simple, that is, after Daniel sees it, he will immediately return to Deep Mining City. Lukka reckoned that he should have just reached the ground by now and hadn't moved down again.

Halfway through the book, he looked up at Gavin and asked, "Do you have any specific coordinates here that can be written in the way they are marked on the ground?"

"You mean latitude and longitude, right? Of course!" Gavin picked up another pen and wrote down two strings of numbers, adding a -1435 meters for depth after the usual latitude and longitude.

"Writing this, you're going to use a box to deliver it, right? Those gnomes don't keep an eye on the box, and when they find out that there is mail in the box, you can probably walk back. Gavin said.

"You don't have to worry about this. Lukka said, folding the letter and putting it in an envelope, writing Daniel's name on the cover.

Then, he raised his staff and cast a light spell on the envelope, plus an illusion spell, all with a delayed cast effect.

Lukka adjusted the spell's activation time to five minutes, enough for the envelope to reach the surface. It's just that the general spell effect can't penetrate the box that condenses the power of change, and his two spells are one of the plastic energy system and the other is the illusion department, and they use the power of plastic energy and illusion respectively, which should be enough to compete with the power of change and spread light and sound.

He tossed the envelope into the box and closed the lid.

Gavin asked, "Will this really be useful?"

"We'll find out in a moment. Lukka said, staring at the hands on his pocket watch.