The cave was wide enough to accompany the five outsiders flying in. With Reimu's gohei in hand, Marisa's wand armed, Mima's scepter in hand, and Yuka's umbrella prepared, the four of them plus Genji were prepared for anyone who stood in their path. Fairies came from the opposite direction, either in hopes of fleeing to the surface, or hoping to vanquish the intruders. This was pointless on their part, for the combined danmaku of a Hakurei miko, a descendent of a youkai hunter, a spirit of Jigoku, and a youkai of the World of Dreams was enough to obliterate the fairies before they got too close. Yuka smiled a smug smile, "This is fun, wouldn't you agree?"

Reimu cocked an eyebrow, "Fun? You consider this fun? I consider it dangerous!"

Yuka chuckled, "Of course! Slaughtering fairies is fun since they reincarnate! You feel no moral qualm in doing so, and it is invigorating for both the mind and body!" Just then, a veritable wall of fairies came from the depths of the cave. Yuka commanded, "Fall back. I'll deal with them." Reimu, Genji, Mima, and Marisa distanced themselves from the youkai. Yuka aimed the tip of her umbrella at the wall. A gigantic green beam of light materialized in front of her, and the wall of fairies disappeared with the beam.

Marisa was stunned, "Wow! How do you do thatǃ? What's that calledǃ?"

Yuka, still smiling, replied, "That's a spell called Master Spark. A youkai of my power can wield it with ease."

Marisa became giddy, "Can I learn how to do thatǃ?"

Yuka laughed a delightful laugh, "You? A human? And a human infant at that? No."

Marisa narrowed her eyes, "Hey! I'm not an infant! I can fly! And shoot these!" She fired green and yellow stars out of her wand which, unbeknownst to her, killed some faraway fairies.

Yuka continued, "Yes, but you can't channel that much raw energy. Mima could, and the Hakurei girl might also, but I doubt you can."

Marisa boasted, "You can't know that until I try! Just tell me how to do it! It might work!"

Yuka sighed, "Fine. If it'll shut you up." She cleared her throat. "First, you need an item to channel the Master Spark. I have my umbrella, and your wand might work too. Then, if you see someone you don't like, point the object of your channeling at the person you don't like. Concentrate your mind, body, and spirit into your object of deliverance, and when you've concentrated enough, unleash the annihilation within you!"

Marisa smiled, "That doesn't sound so hard! I'll try that the next time we get swamped!"

She said that as another wave of fairies approached. "You mean like right now?" Yuka asked with a smile.

"Yeah!" Marisa boasted. She pointed her wand at the fairies. With her eyes closed in concentration, she then shouted, "FIRE MASTER SPARK!" The end result was a skinny blue laser, not unlike the kind that she fired in the past. "Huhǃ?" she managed to enunciate before evading the shots from the fairies.

Reimu summoned borders around the fairies. The borders fired off yin-yang orbs that eliminated the incoming fairies. "Geeze, Marisa! Could you for once not be so wrecklessǃ? Look what your blunder made me have to do!"

Yuka, undisturbed by what just happened, said nonchalantly, "I told you most humans can't learn the Master Spark. You're going to need much more practice before you can even attempt such a spell."

Marisa exclaimed, "Oh trust me, I'll learn a way! I can't let a spell like that happen before my eyes and then not learn it somehow!"

Shinki kneeled down to Alice's eye level. "You must stay put. Do not leave this room. I will deal with the intruders."

Alice questioned, "Is someone gonna get hurt?"

Shinki sighed and said, "Possibly, but so long as you don't leave, you should be fine. Yumeko and the fairy sentries will protect you."

Alice resigned, "Okay."

Shinki got up and began to leave the room, "I will be back. I promise." And with that, she was gone.

Alice couldn't sit still. She felt bad that her foster mother was going to fight bad guys by herself. She wanted to help her. Luckily for her, there was a window nearby. Now all that was left to do was find the invaders.

The cavernous passage that the party had flown through had now opened up into a delta of sorts that included an entire city underground. There were numerous lights emanating from the windows of the underground structures, giving the city an ethereal glow.

"Wooooow." "How pretty." "Interesting."

After looking upon the city for the first time, Reimu pondered, "So, where do we go from here?"

Yuka mused, "The most impressive structure is that Occidental castle over there, so I would imagine that's the most important place here."

The outsiders turned to face the castle when a youthful voice interrupted them, "Stop right there!" A small girl with short blonde hair that was wearing a pink dress appeared before them, "You are not supposed to be here! Turn back now!"

Reimu pointed out, "The youkai from here are disrupting the peace of the people on the surface! We came to put an end to that!"

The girl shouted, "No, it's you who's disrupting the peace here! I came to put a stop to your invasion!"

Mima noted, "What's this? Another little girl has come to make my life miserable?"

The child responded, "I'm not just any girl; I'm Alice, the favored subject of Makai! I'm a youkai that is a master of dolls!"

Mima grinned, "Oh, you hear that, Reimu? She's a youkai, so she's fair game for me."

Yuka advised to Alice, "Are you sure it's a good idea to take on all of us by yourself? You're badly outnumbered as it is."

Alice boasted, "Of course! That's why I brought my dolls!" She pulled out two dolls that looked like little fairies in red dresses. The dolls were tethered to strings held by Alice's fingers, "DIE!" she shouted as she fired red sphere and triangle-shaped danmaku.

Reimu, Genji, Marisa, and Mima tried their best to evade Alice's barrage. Marisa shouted, "Dang! Her shots are everywhere!"

Alice's dolls then fired a string of white spheres that homed in on the various invaders. Reimu shrieked as she ducked to avoid the shots. "Hold tight, Lady Reimu!" Genji exclaimed.

Yuka was not evading the danmaku shots. She held her umbrella in front of her, and her umbrella nullified any shots that hit it. "Whatever you're attempting, it's useless!" She said with a smile. With one free hand, she fired back at Alice.

Mima told Marisa, "See? You don't have to worry about Yuka! She's helping-"

-POW! The homing shots from the fairies struck Yuka from behind, "GYAAGH!" She screamed.

"Ha! Don't try using a barrier against me, invader! I can still beat you!" Alice proclaimed as she now started to fire red lasers.

"Yuka, are you okayǃ?" Reimu asked as Yuka fell behind.

"I'll survive, but you fight without me. I'll catch up later." Yuka answered.

Mima weaved through the laser curtain while trying to fire back. "Nevermind what I said. We'll just have to take her down ourselves!"

Reimu queried, "But howǃ? It's impossible for any of us to get an opening in this kind of attack!"

Marisa dodged the lasers and homing shots without firing back. A thought ran across her head as she did this, It is an elemental reactor. Think of it as a device that enhances magic. "That's it!" She blurted out.

"What's it?" Reimu wondered.

"The reason Yuka's magic didn't work!" Marisa ordered, "Get back, everyone! I'm gonna settle this with one shot!"

"Oh, you're not seriously gonna try using Yuka's spell again, are youǃ?" Reimu said with exasperation.

"I've never been more serious about anything in my life!" She shouted.

Mima threw up her arms, "When she gets like this, you better do what she says." And with that, Mima, Genji, and Reimu retreated.

Alice, still firing, taunted, "Ah ha! It's just you now! I knew coming here was the right thing to do!"

Concentrate your mind. Marisa's fingers gripped the wood block she had hidden in her dress pocket. Channel your magic tenderly into the mini-hakkero. Alice was grinning in a cocky manner. Aim at someone you don't like. Marisa pointed the side of the artifact with the trigrams at the blonde youkai. Now unleash your annihilation of love! Marisa screamed at the top her lungs, "MASTER SPAAAARK!" A gigantic green laser shot forth from the mini-hakkero, destroying all of the danmaku that got in its way, and consuming Alice in the process.

"OOOOWWWWWWWW!" Alice yelped. Her dolls were destroyed, and her hair and dress had become singed once the laser wore out. She turned away and flew back in the direction of the castle, sobbing loudly in pain.