When driving, explaining the working principle of an internal combustion engine to someone who does not have the knowledge of mechanical design principles is bound to be painful and even torturous.

However, it is always good to have someone to talk to, and Dussart quickly found a way of explaining it that Mr. Captain could accept.

After changing the technical words such as "burning", "doing work", "deflagration" and so on to "explosion", Mr. Captain instantly understood what Dusand was talking about. And the interest in chatting is getting higher and stronger.

"A certain percentage of flammable gas mixed with air ignites when compressed, and then explodes in a small space." Dussaint explained the principle a little bit, and then pressed the accelerator hard. Then he frowned, "It seems that the air pressure in the gas cylinder is not enough." ”

Previously, when the accelerator was pressed, the engine would change its speed according to the amplitude of Dussand's pedal. But now, when the throttle is pressed, the engine seems to run at the same speed as when it was not pressed.

Due to the rush of work, there was no speedometer, no tachometer, and naturally no fuel gauge on the experimental vehicle No. 2. Dussand's shifts and driving maneuvers all rely on the same experience he had gained from his driver's license test a decade ago.

Now, stepping on the accelerator doesn't react. Dussander judged that it was more likely that the gas stored in the cylinders had run out – of course, because the cable that controlled the release of the gas had broken. To determine exactly what the reason is, you can know by changing the cylinder.

Dussaint stopped the car and turned off the fire on the spot. He said to Mr. Captain Captain beside him, "Please be on guard, I'll go get a gas cylinder from the carriage in the back." ”

Undoubtedly, the safest situation for a convoy that could be ambushed is during maneuvering. As long as the convoy is moving, it becomes very difficult for the enemy to ambush the convoy - it is actually very difficult to shoot at moving objects.

In order to have the ability to attack moving objects, the army has specially purchased large-caliber air-burst artillery shells and fully automatic firearms. The bandits obviously don't have such a thing - they are armed with some single-action rifles that have flowed from the army at most. Such weapons are not suitable for attacking moving objects.

As a result, convoys are most vulnerable when they come to a stop. Dussander asked Mr. Captain to be on guard and get the gas cylinders himself in order to minimize the risk of injury to people after the attack.

Although it is here to be used as bait, it is difficult for people to accept it if someone is really injured when it is a bait. It's best to have a little bit knocked off the armor plate and then wipe out the enemy.

After adjusting the button in the steam knight to the high-torque mode represented by the peak, Dussaint snorted to the logistics wagon, and then began to unload the car.

Lorraine slept in the carriage in a daze, and when she saw Dussand, who was wearing the armor of the Steam Knight, she screamed several times in fright. Dusand finally had to take off his helmet and comfort her with Polina for a long time, which calmed the little girl who had slept again.

Carrying the gas cylinder and changing the fuel, Duschild restarted the car with the rocker, and then climbed into the cab with great difficulty to drive forward.

Subsequently, he discovered...... The captain was gone.

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According to the original plan, the captain, who was dressed in the armor of the Steam Knight, would be responsible for the safety of Dusand at all times, and provide lookout during Dosund's repairs or refueling of vehicles.

But now, the man in charge of lookout protection is gone.

In a hilly area with few trees, it is impossible for a steam knight who is more than two meters tall and close to three meters to disappear out of thin air. Dussander suddenly felt a chill run through the back of his neck. He didn't care about anything else, jumped directly onto the roof of the car and began to observe his surroundings.

The officer's car, which was about a hundred or so behind Experimental Vehicle 2, also noticed that something was wrong, and the response they took was somewhat incomprehensible to Dussand—the roof of the carriage suddenly opened, and a brass instrument that looked like an ancient armillary sphere appeared on the roof.

In the center of the instrument, there is a large lens about a yol in diameter, and inside the lens is a calcium stone about the size of Dussand's head.

A hand came out of the carriage with a lighter. It seems that as soon as the situation is not right, they will immediately ignite the fire.

Dussant only glanced at the instrument before refocusing his attention on the search for the missing Mr. Captain. What that machine is, and when it should be used, none of these Dussaints care. All he wanted to know was what had happened to Mr. Captain.

Just when Dussander could barely hold back the anxiety in his heart and was about to drive away, a burst of dirt suddenly rose on the hillside more than 300 yol away.

A few seconds later, a humanoid monster covered in dirt jumped out from beneath the ground. It also carried a man in its hands—a poor humanoid monster carrying his thighs and head-down and embarrassed from the ground. He kept trying to resist, but neither with the dagger in his hand nor with his fists...... It has no effect at all on humanoid monsters.

Dusson was a little nervous, and he was about to adjust the knob in the Steam Knight to the fire setting, when he saw the humanoid monster in the distance walking towards him. As it walked, its joints and back erupted with thick puffs of white vapor over and over again.

That's not a monster, that's Mr. Captain, who just disappeared!

Mr. Captain walked all the way to the car with the poor "captive". Then he came straight out of the steam knight's back armor.

The Steam Knight remained in an upright position, while the captive was still caught headfirst in the palm of his hand. It can be seen that Mr. Captain's physical exertion has been greatly exerted by the action just now, and even the beard on his face is wet.

"This guy just peeked in the tunnel next door." The Captain explained to Dussand the reason for his sudden disappearance, "He had a weapon on him, and when he saw that I had spotted him, he immediately burrowed into the tunnels. This man is supposed to be a spy. ”

Dussaint glanced at the head-down "spy".

His figure was very weak, and his clothes were in tatters. His hair was long and messy, and he had a strong rancid smell on his body - there were many scars on his arms.

And what attracted Dusand the most was the tattoo on the bottom of the spy's neck.

The quality of the tattoo looks very good, and it clearly depicts a battleship firing a cannon in deep space. And around the battleship pattern, there is a circle of text that Dussander can't read.

"It's the Alliance." The captain of the Navy recognized the meaning of the tattoo faster than Dussand, "These thieves like to tattoo the pattern of the ships they served on their bodies. This man should be ......," he narrowed, then added, "It's the crew of a fish-nest-class cruiser." He has no other tattoos on his body and is probably a recruit. ”