Twilight Sparkle ran out of the Canterlot library to find her friends somewhere in the city, she practically ran all around Canterlot looking her friends. When she finally found them they were at Rarity’s favorite cafe, why she didn't look her first she’ll never know.
“Hey Twilight, what’s going on?” Rainbow Dash asked upon noticing Twilight Sparkle.
“Guys I just found out that there’s a secret room holding an Alicorn frozen in crystal somewhere in the castle.” Twilight said quickly.
“An Alicorn frozen in crystal….darling I think you've been awake too long.” Rarity said not believing Twilight.
“I don’t know, I think it’s worth looking into.” Applejack said supporting her friend.
"I agree with Applejack, that and it’s better than sitting around here and doing nothing." Rainbow Dash said flying a foot or two in the air.
"Then its settled well go look for the secret room that was mentioned in a history book I read." Twilight said walking towards the palace with her five friends close behind.
The group of friends quickly made their way to Canterlot Castle, on their quest to find the mysterious Alicorn within the crystal. Upon arriving at the castle the friends split up into three groups of two, figuring it would be the fastest way to find what they're looking for.
"So, Twilight do you even know what we're looking for?" Rainbow Dash asked not entirely sure why she agreed to something so boring to begin with.
"Not exactly, but I figured it would be a secret passage behind a banner or a book case, something around those lines." Twilight said stopping to look behind a banner.
"Great how do we expect to find this secret room if we don't even know what we're looking for." Rainbow said quietly to herself as she leaned up against the wall. Then something unexpected happen the wall she leaning up against moved slightly inwards creating a loud grinding sound.
"Or it could be behind a section of the wall." Twilight said in disbelief.
"I'll go get the others!" Rainbow Dash said excitedly as she flew off.
Twilight didn't have to wait long before Rainbow Dash came back with the rest of the main 6, by then Twilight forced the door all the way open and was ready to descend down a set of staircases into the darkness.
"Do we have to go down there?" Fluttershy asked being her usual self.
"Yes, unless you don't want to know what's down there, but that would be silly." Pinkie Pie answered.
The Mane 6 began their trek down the staircase and into the darkness below; their only source of light was a common light spell erupting from Twilight's horn. The trek down the stair case was a long one no pony was sure when it was going to end, that is until Fluttershy accidentally hit a rock with her hooves, sending the off the edge of the staircase.
"Sorry every pony." Fluttershy said quietly upon doing it, just then the rock could be heard hitting the floor below.
"Two seconds!" Twilight yelled out excitedly.
"What now?" Applejack asked not sure what Twilight was referring to.
"The rock took two seconds to hit the ground, meaning we're not too far from the end of the staircase." Twilight explained further.
"About time!" Rainbow Dash said impatiently.
"I'll have to agree with Rainbow, it has taken a great amount of time to get here." Rarity said agreeing.
The group of friends quickly made their way down the rest of stair case. When they reached the bottom however, they wished they didn't come down without a proper light source. Twilight began to walk around looking for anything that could provide more light then her and Rarity's horns could. While doing this Twilight somehow caused a train reaction, which for some unknown reason caused a fire to light around the edges of the room they were in. The group of friends stood there in awe of what was in front of them; there on the wall opposite of the stairs sat a very large green crystal with what looked like a figure of an Alicorn within it. The wall behind the crystal was a row stained glass windows, each one depicting the history of the Alicorn that was frozen in the crystal in front of them. From the events of early childhood to the event that trapped her within the crystal. But something was missing in this Alicorn's history, her birth there was no stained glass window about her birth.
"Well Twilight I believe I owe you an apology." Rarity said bringing her friends back to the task at hand.
"So how are we going to get her out of there?" Fluttershy asked quietly.
"Remember reading that an Alicorn was the one who put her in there, so maybe an Alicorn can get her out." Twilight said as she got ready to release a blast of magic towards the crystal. Her horn began to glow as it charged a magical blast; once it was ready Twilight released it on the crystal leaving only a small crack on its surface.
"What are you six doing down here....and more importantly how did you find this room?" Princess Celestia asked them sternly. Twilight turned around surprised to see her former mentor behind them, but what really surprised her was the sternness in her voice.
"Princess Celestia? We discovered this room through a history book that mentioned that Crystal over there..." Twilight started before getting cut off by Celestia.
"You had no right to go snooping around in affairs you don't understand." Celestia said a little harsh.
Twilight began to defend her actions to the Princess, while that went on Fluttershy noticed something going on with the crystal that no pony seemed to notice. The small crack that Twilight left on the crystal began to grow by the second; eventually the entire crystal was covered head to toe in the cracks.
"Excuse me but...." Fluttershy began before one of the two Alicorn Princesses cut her off rudely, so she tried again. "The crystal it's...." She started once again, and again gained the same result. Before Fluttershy could try to turn every pony’s attention towards the crystal again, it exploded from the inside out sending pieces of green crystals across the room. The blast from the crystal not only managed to attract the attention of every pony in the room but also managed to destroy the stained glass behind it. All the ponies in the room slowly walked towards the place the crystal once stood, now in its place laid the Alicorn that was once trapped in the crystal.
"Rainbow Dash, go and get some of the guards and bring them back here." Celestia ordered, in response Rainbow Dash gave a quick salute before flying out of the room at top speed. "Now as for the rest of you go get some sleep I'll explain everything soon enough." Celestia said turning her attention to the other five friends in the room. They did a quick nod before leaving the room themselves, Celestia turned towards to unconscious mare lying on the floor.
'Welcome back Aurora' Celestia thought to herself as two Pegasi guards appeared in the room. But there was something no one noticed as the crystal exploded, a black figure that looked like it was made the embers of a leftover fire floated in the far corner of the secrete room watching the every movement tacking place within it.