"I feel like Rainbow Dash definitely has something she hasn't told us."
Saying they were going to buy things wasn't entirely an excuse.
Now that they had separated from Rainbow Dash, Aurora Glow directly voiced her thoughts about her.
"She must know who created the Sonic Rainboom, but why is she unwilling to tell us? She isn't even willing to tell Fluttershy; she should know how important the Sonic Rainboom is to you all."
"She might have some unspeakable hardship... I don't think we should force her to say things she doesn't want to talk about."
Fluttershy said. Although she couldn't understand Rainbow Dash's abnormal behavior, she cared more about her friend's feelings than her own curiosity and didn't want to make things difficult for Rainbow Dash because of it.
Aurora Glow knew what Fluttershy said made sense, but curiosity about the truth kept tormenting her heart. Rather than endure it, she preferred to think of other ways to achieve her goal.
Aurora Glow looked up at the sky and saw a cloud house appearing somewhere above Ponyville.
"Is that Rainbow Dash's home?"
Following the direction of Aurora Glow's hoof, Fluttershy and Spike looked up and also saw the cloud house.
"So that was a house? I thought it was just a uniquely shaped cloud."
Spike exclaimed, his tone filled with a bit of envy.
It was a pity he didn't have wings; otherwise, he would also want to fly freely like a Pegasus.
Mentioning wings, Spike suddenly thought of a problem.
"Wait, if Rainbow Dash's birthday party is being held at her place, how do we get up there? We can't even stand on clouds."
In that case, the only ones who could attend Rainbow Dash's party were probably Pegasi like Fluttershy.
"Maybe it isn't at her house. Before, when we threw a party for Flying Light, it was at Sugarcube Corner, and besides..."
Fluttershy wanted to say that Rainbow Dash's birthday party was thrown by Pinkie Pie. Pinkie Pie was an Earth Pony; she couldn't prepare a party on a cloud and would definitely choose a place where every pony could attend.
But they suddenly caught a glimpse of a small black dot jumping out of the cloud house, and then a parachute printed with Pinkie Pie's smiling face opened in mid-air.
"Oh..."
"I guess you want to say, 'Nothing can stump her,' right? I wanted to say that too."
Seeing this scene that was both within reason and unexpected, Spike and Fluttershy stood together and complained.
Although this matter might not stump Pinkie Pie, it certainly stumped those of them who couldn't fly. Only Aurora Glow looked completely unconcerned.
"What's so hard about this? I know someone who can help us."
Watching Aurora Glow lead the way with a confident look, Spike and Fluttershy exchanged puzzled glances and followed behind her.
But then they saw Aurora Glow lead them back to Aurora's home.
"Heh, I knew it."
Spike narrowed his eyes and looked at Aurora Glow, who went to find her sister whenever she had nothing to do.
However, Aurora Glow's train of thought was sound. If they wanted to let ponies and dragons who couldn't fly get up to the clouds to attend the party, only magic could accomplish that.
"But shouldn't they still be busy at this time? Shouldn't we come back later...?"
"It will be too late later. Someone has to notify them in advance to go to their new friend's party."
Aurora Glow rationalized her motive for disturbing her sister, but she forgot that Spike, who often undermined her, was right beside her.
"I hope you also haven't forgotten to show your mother's letter to your sister."
Aurora Glow, who was just about to knock on the door, had her expression collapse instantly, but she still knocked firmly on the door.
In the workshop on the other side of the door, three academic geniuses were busy in full swing.
Their research into Supernatural Magic was going smoothly for the moment; at least it hadn't failed too thoroughly, and none of the explosions everyone loved to see had occurred.
After all, laboratory explosions were just a stereotype of scientific experiments in science fiction.
They weren't developing explosives, so how could it just explode whenever?
However, being able to play with magical energy so safely was mainly attributed to Aurora's magical eyes.
Perhaps because Aurora had blown things up several times when testing on her own before, she had become intimately familiar with the conditions under which magic power would explode and knew when to stop when the magic power changed color.
Nothing else, just hoof-familiarity.
Using the materials Zecora brought, they spent the whole morning making a small magical force field on the table.
After all, it was just a sandbox model. It could only provide simple physical obstruction to the outside world and wasn't particularly reinforced; touching it with a hoof would only result in a sensation similar to static electricity.
At least this proved that Aurora's idea was feasible, and that was enough.
But looking at this model, Aurora always felt there was some deviation from what she had envisioned.
It wasn't that the model they built wasn't good enough; even if Second Senior Sister took over, it wouldn't help in this situation.
"It seems to be lacking a bit of a... 'natural' feeling?"
Twilight Sparkle lowered her voice to express her opinion.
This Feng Shui model was too delicate and couldn't withstand too much chaotic stimulation from the outside world, so they had to converse cautiously like this.
"After all, this whole thing was simulated by us using materials; it doesn't count as real 'Feng Shui'."
Aurora admitted this.
The more she delved into Supernatural Magic, the more she felt that Equestria's history calling Thin Mist Blue Mane a witch was too imprecise.
This should be called a Taoist priest.
It was just a pity that Thin Mist Blue Mane was still trapped in a mysterious space with other ancient old-timers; otherwise, if they could exchange techniques with this senior, they would definitely be able to progress faster.
"According to my calculations, if you shift that crystal ore 42° to the left, you can increase the speed of the magic power's circulation by 10%."
Twilight Sparkle looked at her draft notebook and said, comparing it to the sandbox model.
Hearing this, Aurora adjusted her glasses, compared the model from both perspectives back and forth, then also saw some problems and prepared to move the piece of ore Twilight Sparkle mentioned.
However, Aurora couldn't extend her own magic power into this fragile force field, so she could only carefully move it with her less flexible and precise hooves.
'Second Senior Sister is right, hands are still too overpowered.'
Zecora and Twilight Sparkle held their breath, watching the angle at which Aurora used her hoof to move the ore.
'Bang bang bang!!'
"Uh... did you hear any strange noises?"
Spike faintly heard some noise coming from inside the house, but he wasn't sure if it was Aurora Glow's knocking or something else.
Not long after, the sound of unlocking came from the tightly locked door. The one who came to answer the door was Aurora, but her expression didn't look pleasant, and there was some uncleaned dirt on her face.
"I should have hung a 'Do Not Disturb' sign on the door."
Aurora looked at the pony and dragon who had returned, feeling somewhat depressed, and muttered to herself.
"So why did you come back so soon?"
Aurora turned sideways to let them in.
Inside the house, Twilight Sparkle and Zecora were cleaning up the dirt and gravel that had been blown everywhere; their expressions weren't very good either.
Fortunately, the loss wasn't significant; they had only lost an unimportant model.
Originally, that was just one of the failed samples; as long as the data was recorded, it was fine.
"While we were shopping, we met a pony named Rainbow Dash!"
The first sentence Aurora Glow said after returning home brought a heavy-hitting piece of news to Aurora.
'The main cast is finally complete!'
Aurora calmly signaled for them to continue.
Then they told them about the process of meeting Rainbow Dash, the party Pinkie Pie prepared for Rainbow Dash, Rainbow Dash and the Sonic Rainboom, and their distress about how to get to the sky.
Finally, Spike didn't forget to add about the matter of Meteora's letter.
Aurora's gaze suddenly became sharp.
Only then did Aurora Glow reluctantly hand the letter to her sister. She hadn't had time to read it yet and didn't know what was written on it, but she felt she definitely wouldn't like the content.
Aurora signaled the other ponies to keep chatting while she and her sister read the letter from home first.
"So, there are now six ponies who got their cutie marks because of the Sonic Rainboom?"
Twilight Sparkle said with pleasant surprise.
After the experiment failed, being able to hear such good news was beneficial for regulating her mood.
"Yeah, and today is even her birthday. You'll go to the party, right?"
"Need you ask? I'll definitely go! But if it's in the sky, it really is a bit troublesome..."
"Maybe you can find a spell that lets ponies grow wings."
Spike looked at the magic genius here with expectation.
Although he didn't know much about magic, there were two Princess proteges and one knowledgeable Zebra here; he believed they could definitely think of a way.
"There is one, but that magic is a bit difficult, and it can't let all ponies grow wings and fly to the sky."
Twilight Sparkle expressed her helplessness with regret.
"Why not ask, why not hold the party on the ground?"
"At that time, we happened to see Pinkie Pie jump out of Rainbow Dash's home."
"Pinkie Pie? Then how did she get up there?"
Spike and Fluttershy shook their heads simultaneously, indicating they didn't understand either.
"What's the big deal? Isn't it just going to the sky?"
Aurora, having finished reading the letter from home, spoke up.
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