With the sound of a metal hollow, the short throwing knife shot rapidly in the direction where the sound of snow treading was heard.

However, to the surprise of the mad dog, the throwing knife slammed into something out of thin air and bounced back violently. After two rotations, it loses kinetic energy and falls to the ground.

Immediately pulled another throwing knife from each sleeve, and Mad Dog quickly threw it out in a straight line. In the position of the same horizontal plane, they were simultaneously bounced off, inserted into the snow.

Gritting her teeth, Cereya retrieved the other throwing knife she had taken out and hurried to the direction where they had fallen.

Picking up the three knives that had been deep in the snow and retracting his sleeves, Mad Dog looked around vigilantly.

"On the snow around here...... Not a single footprint. Seresa turned to the three people who had arrived: "It's impossible for such a thick snow not to leave footprints - look!"

Mad Dog pointed to three small holes in the snow: they were the marks left by the knife in it.

"That's why I said you misheard!" Lucina said with a flapping of her wings.

"Probably. Maybe it's nobody. Mad Dog hammered his back and kicked forward after two steps. As if kicking on the clear glass, the mad dog's foot bounced back: "But look at this - and the knife was bounced back out of thin air." How do you explain that?"

"Lusha, get off my sister's back first. Lucina leaned down and let her sister jump off her back.

Turning back into her human form, Lucina shook the snow off her skirt and approached the mad dog. Glancing at the Aiya sisters, who were wearing short skirts and shorts, Mad Dog secretly envied Aya's physique - mainly for their adaptability to temperature. After all, it would be nice if I had half of them who weren't afraid of the cold.

The Mad Dog shivered just by looking at Aya's light and petite costumes—he imagined that he would freeze in a matter of minutes if he wore so few clothes.

"I'll look at ......" Lucina reached in front of her, struggling to navigate through the snow (Ayasia was short, and the snow engulfed half of her legs. So every step is extremely difficult). After a few moments, her hand was pressed against the transparent "glass".

"Oh...... really," Lucina stroked the glass in surprise, then tapped it with her hand. This action caused it to emit a dull sound: "This...... It doesn't look like the barrier last night. Lucina crouched down and continued to tap, "No, it's completely different. ”

"The blind and the mentally handicapped can see the difference!" Seresa slammed her fist against the transparent wall, and said impatiently: "Yesterday's energy gate, as soon as I touched it, it turned black and purple. But this is still transparent. ”

"The barrier is wide. Anusen, who had left at some point, had already walked back to the three of them: "I went over there to take a look, and there was a barrier in the way." ”

He had to walk out more than ten meters away...... Mad Dog squinted his eyes and looked at the footprints on the snow: "Lucina, you keep putting your hand on it, do you want to lift it?"

"Hmm. Lucina nodded, her hands glinting: "I think that since this barrier is disguised as transparent and prevents people from entering, there must be something good hidden inside." ”

"Okay thing? Mad Dog turned his head and looked at Lusa, who was next to the knight, and then at the empty avenue, "I see that is how the patrolling teams disappeared...... There are Corruptors hiding behind barriers. ”

"You think the enchantment is a sound?" Lucina turned to look at the mad dog.

"For footsteps can be heard, but there are no footprints. Seresya tightened her trench coat, put her hands in her jacket pockets and turned to leave: "I'll take a look around...... There's got to be an outlet for this thing. ”

"I'll go to the other side. The knight went in the opposite direction, and Lusa stayed where she was, leaning over to her sister.

Clinging against the barrier, the maddog tilted his head to take a closer look at the parts that might be out of the ordinary. Until he rejoined the knight, he didn't find anything of note.

"This barrier encloses a large area in the middle. Mad Dog looked at the oncoming knight and kicked away a puddle of snow: "The scope of this thing is not as large as I thought. ”

"Looks like you didn't find an exit either. The knight sighed: "But just by looking at it, you will definitely not find it." ”

"Even if you touch it, you still can't find it. Mad Dog kicked the barrier again: "Are you paying attention to the flow of air, knight?" I think you must be feeling the wind at the entrance. ”

"Attention, nothing unusual at all. Anusen shook his head: "But maybe it's because the wind speed is too low right now." ”

"I'll walk in the direction you came from again. The mad dog looked around warily and walked towards the knight.

Moments later, however, the two returned to Sister Aya. The air flow of the barrier is constantly blocked, with no indication of the presence of a hidden entrance.

"You're finally back!" Lucina, who was hugging her sister and didn't know what to do, came to her senses: "Did you find it?"

"Nonsense, you look like we've found the entrance?" Mad Dog looked at the mage and snorted, "Needless to say, you've failed again, haven't you?"

"Aha! it's because of that ......" Lucina smiled embarrassedly and rubbed her sister's head, "The enchantment is too powerful! ”

"I knew it was going on. Mad Dog pursed his lips disdainfully: "I don't even change an excuse." ”

"If you want to pass the barrier, you may need to use some special magical tokens. Lucina hugged her sister tighter and said with a happy face, "Or...... Only the caster can manipulate the entrance open. So we can't find it. ”

"Then leave it alone. The mad dog casually kicked a puddle of snow, and the soft snow splashed the two Ayas: "Hurry up, shall I not be idle here." Finish work early, so I can go back to Snowcastle and get the remaining ten gold coins. ”

"And then eat and die?" Lucina cried out dissatisfiedly, "You don't know what's going on! We're in the same boat as Winterfell. ”

"Just because of that lonely curse?" Mad Dog raised his eyebrows: "That hooded man is just playing with us, don't you understand?"

"Can you two stop arguing at the first opportunity?" Anusen frowned, looking at the transparent barrier.

"The same person cast the barrier from last night?" the knight looked up anxiously and looked up, "Then there must be some important secret here...... We had to find a way to get in. ”

"Aha...... We can fly up. Lucina turned her face to her sister and patted Lusa on the shoulder proudly: "His enchantment is very powerful, but he would never have imagined that someone would descend into it from a high altitude." ”

"Then hurry up and try. The mad dog shook off the snow and impatiently asked, "If there is anything suspicious, don't touch it yourself." Get it done early and we're good to go. ”

"You don't have to worry about it, just take your stomach and get it!" Lucina glared at the mad dog. Subsequently, the Aiya sisters flapped their wings and flew into the sky.