After settling the affairs of Dawn, Roland returned to his residence, a manor located deep in the camp.

It was supposed to belong to a wealthy merchant and was built with several connected two-story stone houses and a large front and back yard. It's just that Hermes's turmoil has left the original owner missing, and he has used this place as a temporary place to stay.

Walking into the main room in the middle, Anna was sitting at the table, carefully flipping through the books he had found in the dream world. The sun poured down from the window, reflecting her bangs in a beautiful golden yellow, while leaving a line of light on the contours of her fair face.

"Finished the meeting?" she asked, turning her head and smiling.

"Well, everything to be explained has been said, and Nanawa and the others will have to leave early tomorrow morning. ”

"Soak your feet first," Anna said, getting up and bringing a basin of water, placing it on the low stool beside the bed, and leaning over to help him take off his shoes and socks. The leather boots used on the plateau of this era were hard and breathable, so the first thing he did when he returned to the bedroom was to soak his feet and relax, and then change into a pair of lightweight soft-soled cloth shoes. At first, Roland insisted on coming by himself, but in the end he couldn't resist the other party's stubbornness.

"How's the water temperature?" Anna sank the black fire into the water.

"Warmer it up...... Ah, that's just right. Roland felt a burst of warmth enveloping his feet, and couldn't help but let out a sigh of relief.

Not only that, but the black fire would also turn into a ball, squeezing his instep and foot plate like a massager, and finally covering his entire foot to dry the remaining water.

It's really easy to get addicted to this kind of life.

"And what about you?" Anna sat down beside him, "will you go with Nanava tomorrow?"

"No, the other one is Sylvie, whose surveillance abilities are irreplaceable for the garrison. Roland shook the other man's hand, "I can certainly stabilize people's hearts when I go back, but they always have to get used to dealing with trouble on their own without me in charge." In addition, the main force of the First Army was not in place, and the role I could play alone was very limited. By the time Maisie finishes transporting the two of them, the second batch will be your turn and me. ”

Since the Hummingbird's abilities do not work on living creatures, Maisie is limited to about two people at a time, depending on the weight of the crew. Lightning can also carry a person on its back, but the altitude will drop significantly, and it can basically only fly close to the treetops, which is okay for emergency use, and it is too unsafe for long-distance voyages.

Getting from Hermes to Neverwinter is a long journey, and even if Maisie were able to continue flying after the sun had set, without having to spend time foraging for food every day, it would take nearly three days each way. He could only deliver it in batches according to the urgency of the witch.

Fortunately, the army will gradually advance south along the river, and the interval between the transportation of each group will be shortened accordingly.

"It would be nice if there was a faster way to transport it," Anna said, looking up, "like the kind of machine that can fly in the sky." ”

"That's not easy, unless—" Roland wanted to say that without an internal combustion engine, it would be impossible to build a truly functional flying machine, but in the middle of his words, an idea suddenly flashed through his mind, causing him to subconsciously change his words, "Wait, maybe it's not impossible." ”

"How?" Anna's blue eyes sparkled.

"Take advantage of Wendy and Mystery's abilities," Roland pondered, "if only for manning...... Together, they might work!"

This was also the inspiration for Maisie's bombing program, and if it weren't for mass production or versatility, the witch's abilities could be as effective as machines in many ways.

After three years of accumulation, Neverwinter now has lightweight aluminum, an arithmetic academy that can perform large calculations, and a central carrier to verify the results, and an unpowered, or weakly powered glider is not an unattainable goal.

Of course, the most important thing is Wendy's wind control skills and the electric motor that loads the Aurora One.

In simple terms, an airplane can fly because the engines provide backward thrust that allows the wings to move against the wind and use the airflow passing above and below the wings to create a difference in air pressure that gains lift.

According to Neverwinter's current technology, an electric motor is nowhere near enough to pull up an airplane, but he doesn't need lift from movement, and Wendy's wind is the "air pressure difference" that acts directly under the wings. The electric motor only needs to provide a horizontal component, like lightning adjusting the direction of a bomb in the air – with a small amount of force, the plane can take off.

"In order to be efficient in the air, its wings should be as long as possible," Roland recalls the appearance of later gliders, and the more he says, the more excited he becomes, "but to maximize the lift before takeoff, it must have a wide wing root that can contain Wendy's wind control range." And ......"

A well-designed glider can climb altitude by means of thermals, which can greatly increase the gliding distance, but here the witch can provide updrafts whenever and wherever they want, meaning that as long as the mana is not exhausted, it can fly forever.

In other words, with a runway built at its destination, the plane could transport ten or more people at a time – even the slowest glider could travel more than 200 kilometers per hour, almost three times as fast as Maisie had transformed into a dinosaur, and could reach any city in Greycastle in a day.

Of course, whether it is prototype manufacturing or manipulation training, it is a step-by-step process. Even if you do it now, by the time you can go to the sky, the witch and the First Army will have already returned to Neverwinter.

However, this idea still made the two discuss it with great interest for a long time - flying has always been the greatest temptation for humans born and dead on the ground. And unlike the clumsy hydrogen balloon, the former is a real thing to fly in the wind.

If Edith can bring Roland a surprise in governance, then in terms of technology, the only one who can communicate with him on an equal footing is Anna.

"By the way," she said, meticulously putting away the results of the discussion and the sketches of the model, "did you hear any good news at today's meeting? ”

"Sort of," Roland raised the corners of his mouth and briefly recounted the Northland Pearl's one-on-one meeting.

Anna couldn't help but laugh out loud when she heard Edith's reason.

"What's wrong?" he wondered.

"I would say that she is a little too confident in everyone. It's hard to learn all the advanced math alone, let alone physics and chemistry......," Anna grimaced, "I don't think I could read all those orange books even if it took me a hundred years." ”

"Poof," Roland smiled as well, "there are many more books like this in the dream world." ”

"And I don't think the world will be what she says it will be. ”

"Oh, what do you think will become?"

"She thinks that if you can't gain prestige through the two-rib attack, you might as well let Dawn fall into chaos, but I think there's more to prestige than that. When you lead the people in the battle against the devil and destroy all the terrible enemies that have invaded the kingdom, this is a prestige that no one can match. "You have destroyed the Church and won the battle of the Divine Will, and the witches will remember it, and the remnants of Taqira will be proud of you." You bring all kinds of knowledge to the public, and as long as you open the book, you can always find your name. Whether it's history or the present world, you will be known to everyone, and everyone will know it. Under this prestige, the lords of other kingdoms have sought refuge and asked to join you, and none of them dared to disobey you—for there have been too many examples of what happened to those who rebelled. In a hundred years, there may be only one kingdom left in the world, and its borders have long since expanded to the fertile plains, and it is gradually regaining the glory of the human kingdom......" She paused, "Am I wrong to think so?"