Spike was in his room Then he realized he could only use abilities and powers to only a quarter to half was because his form was inhibiting his new power, so he had to grow and practice to control them better and awaken them fully.
"Oh well, at least I'm not defensive anymore" Spike told himself.
Back with the others
"So Spike's fully restored with his power" Twilight said.
"Actually only 45 percent when combined, since his form is restraining them" Celestia said "You see in order to awaking his powers fully he has to go through tests like you did Twilight" she said.
"So each test he pas's the more the will awaken" Twilight said getting it.
"Correct Twilight" Luna told her.
"What tests does he need to pass?" Starlight asked.
"The rules of a dragon and what makes them a dragon" Celestia said "also has to pass, Fighting, hoarding and killing" she said.
"K-kill killing?" Fluttershy whimpered.
"In deed" Celestia said "the ways of a dragon" she told them "You girls keep an eye on him" she said.
"We will" The six replied.
"Great spying on Spike again" Starlight said disgruntled.
"This is important Starlight glimmer, He now is armed with 11 deadly dragon abilities and will try them out to grow" Celestia told her.
"fine but still don't like it" Starlight said.
"Nether do I" Thorax agreed.
Spike was in the library looking for something on dragons, so for he found crap. He looked some more and again crap.
"I could try in Canterlot" Spike said, then breathed his greenfire around him and visioned where he was going. A flash later Spike was gone.
Spike opened his eyes and he was in the library in Canterlot. he looked around from shelve to shelve he looked at the doors to the restricted section which was closed down with steel mesh, impervious to magic. Spike walked up to the door placed his claws he ripped a huge hole in the mesh, then made it into a bigger hole the size of a Minotaur and walked in.
He looked and saw a book trapped in a steel vault, looked through the glass was a black book with red writing, The book of Dragons: The guide to a dragon you want to become
The book was covered with trapped in a case of toughened glass so strong even a really strong pony couldn't break, but Spike was not a pony
then Spike grabbed the door and squeezed it crumpled like tin foil and pushed it to the frame, it looked like a rolled up paper "I love my dragon strength already even if it was 45 to half awake" he said then walked up to the case with a sharp punch with his rightclaw the case shattered into dozens of tiny pieces.
He picked it up, skimmed through the pages "Bingo" Spike smirked as he skimmed through it, then walked out and sent himself back to Ponyville before the guards found the broken restricted door.
a Few hours later after Spike's Uninvited visit
The others were walking back to Twilight's castle, when one of Celestia's Royal guard flew up to them.
"Your Highness" the Guard spoke.
"What is it?" Celestia spoke.
"We were walking around the castle as usual, we checked the library and it looked like somepony broke into the restricted section" He spoke.
"what?"
"Okay we will be there in a minute" Celestia spoke "Thorax and Starlight stay here and keep an eye on our Dragon, the rest come with me" she said, they all nodded and with a flash of bright yellow light and they were gone.
"Who would break in a solar princesses castle?" Thorax said.
"She does have many enemies, could be anyone" Starlight told him.
Later the others were in the library
"Okay so what are we doing in the library again?" Rainbow Dash asked "So somepony is reading" she said.
"Books in the restricted section are dangerous" Celestia told her, then the group arrived at the doors to the restricted section, the doors were bent to the sides.
"Okay it must be something really strong because that is steel mesh reinforced with magic to make it magic resistant and stronger than normal steel" Twilight observed.
"And has grip marks" Fluttershy said also.
"It can grab and is strong" Shinning spoke, they saw a guard standing by a bookshelve.
"A book was stolen" the guard spoke.
"Which one?" Celestia asked, the guard pointed with his hoof, they looked and Celestia's eyes widened, the steel vault and glass was broken and a book that should be there was gone.
"Okay search the castle and find the thief, they might still be here" Celestia ordered.
"Yes princess" The guard and left.
Celestia's horn lit up "What are you doing?" Twilight asked.
"Seeing who the culprit is" Celestia said scanning the area and the broken doors, glass and vault door and a glowing screen appeared. the doors were still up then a familiar dragon walked up.
"No way" Rarity said.
"It can't be" Celestia said in disbelief, but it was, it was Spike. Spike walked up to the doors to the restricted section and ripped them open, before looking at the vault and bent it to the frame and shattered the glass and grabbed the book.
"Bingo" Spike smirked, then breathed his green fire and vanished.
"Whoa Nelly" Applejack gasped.
Twilight scanned the floor and they gasp when Spike's clawed-feet appeared on the floor "Spike has turned into a thief again" Rainbow Dash spoke in shock "Pretty gutsy to steal from the Princess" smirked, Celestia turned and glared at her.
"That is not funny" Celestia said sharply.
"What book was it?" Shinning "What did Spike take?" he said.
"The book of dragons It is a guide to the dragon the want to be" Luna spoke "He want's to find a path to a dragon he wants to be" she said.
"We need to get that book back and destroy it before he uses it" Celestia said.
"I'll do it, I'm closest to him" Twilight said.
"Okay but if you don't achieve this, We will do it my way" Celestia said sternly, Twilight nodded.
Spike was on his bed reading his new book, He readed the first pages it explained the history of dragons
From the first time a hatch ling drake, breaths his first flame and spending the first years to become the strongest creatures to walk or fly the face of the world. never steal a dragons possessions, never make a dragon angry and defiantly don't anger a dragoness they can be even more viscious than male dragons.
Spike Remembered how his friend Ember was when she was angry, he knew than. Some dragons can look like a teenager but can grow on command to a massive beast, some times depending on a dragon, the angrier the dragon gets in the form the stronger they get.
Spike remembered Celestia said he could grow to a Titanic size, maybe Spike was one of those kinds of dragons
There is almost no limit of how big a dragon can grow, either to the size of the tallest skyscraper to the tallest mountain Spike continued, he turned to a page, a story of of his father the dragon king.
From the dawn of time there was a dragon named Bahamut, he was so powerful he could take out vast armies and cities into by himself with no aid, his fire was so hot he could melt a mountain of solid steel into a pool of molten puddle of ore. He could crush steel in his bare claws and fly a supersonic speed to hypersonic, he was almost invincible in a fight and was 5 to 10 times stronger than any dragon. he was so big and scales were so strong when titan size any weapon would just bounce or shatter against his super strong scales, he was also big as a mountain also could turn invisible to hide from enemies. He got to be the king of all dragons, then a 100 year later, he met his soul mate Aurora who was just as powerful, she had a fire even hotter than Bahamut's, it could melt huge mountain made of solid titanium and bronze into molten metal in a second. Aurora could fire combustion blasts from mouth or claws strong enough to blow a hole in a mountain and had heat beam blasts from her eyes to blow a hole in steel. could heal herself at a rapid rate and had the most endurance than a male dragon
Then Spike paused processing the info "My parents were really powerful folks" he spoke, then readed again. these two bounded together became fast friends and a year later became mates, then had three eggs when they hatched they decided to make one of them the ultimate dragon, with both of their abilities combined with their energy they make one insurmountable dragon and a immortal one at that, but their plan was cut off Spike stopped for a minute and his eyes widened in fury at this next part.
Two Alicorn sister's, one who could control the sun and the other the moon, thought they were too dangerous to be around ruling the dragons if ponies ever annoyed them or provoked them, they would wage war against peace to protect their own, but the sad thing was these four were friends but still, they believed it was for the better and fought them, their battle shook the world, every blow missed destroyed more of Equestria half of the planet was torched and reduced to rubble, the two sisters were on the brink of death but found the last of their strength and slowly overpowered the two rulers and took their life force away with a forbidden spell and left them weak and casted a spell on the third hatchling turned him back into an egg after stripping away it's powers and scattered them to the dragon lands and the badlands, then struck the final blow ending the two, then took the third egg but the other two were crushed by the weight of the Bahamut's body.
Spike looked at the writer who wrote the book, Starswirled the Birded, a witness it said at the bottom and closed the book with a slam. Spike stood up fuming at what he saw, he slammed his clawed fist in the marble pillar in the room making a huge hole in it before breathing fire at the picture of him and Celestia when he was a baby burning it.
"I will never bow to them again" Spike snarled, then his dragon ears heard a scream from outside he hid his book under Twilight's mattress and ran outside where he ran into Thorax and Starlight making them all fall on their butts.
"Spike?" Starlight and Thorax spoke.
"Starlight, Thorax" Spike said "Did you hear that? he asked.
"Yeah lets check it out" Starlight said and the three ran off.
soon they arrived and stopped when it was a creature the size of a Minotaur with a snake like body and head of a goat and arms of a tiger and yellow eyes, and sharp teeth. The creature was terrorizing ponies.
"What is that thing?" Starlight asked Spike, but Spike was not there. Spike knew he could handle this thing, he had his dragon abilities to aid him and had to do something, Spike walked up to the creature.
"Hey ugly!" Spike called the creature turned only to see a tiny purple fist in his face before flying 30 feet back into a wall "Leave them alone" he hissed, the creature growled and slithered at him fast, but Spike zipped to the side grabbed it's tail spun it around and slammed it on the ground making a dent in the ground, then threw it away into a pole breaking it making it fall, Spike flew up and caught it over his head, grabbed it and swung it like a bat and smacked the creature that charged him again sending it flying and smashed into a building. Spike slammed it's broken end in the ground leaving it in but hovered over the ground before flying at the creature who got up and tackled it and slammed it on the ground, picked it up by the neck and punched it in the face and chokeslammed it making the ground around the area tremble and backed away, the creature got up and attacked at lightning speed but Spike ducked and grabbed it's arm turned and flipping it head first in the ground leaving it's head in it.
Spike pulled it out by it's tail slamming a fist in it's stomach and using his claws and slashed it's chest, making it bleed, then threw it in a wall cracking it zipped behind it and breathed a breathed a powerful stream of fire torching it screamed in agony before turning into a burnt husk and fell over, then Spike walked away and back to Starlight and Thorax who were a bit shocked.
"Whoa you torched that creature" Thorax spoke.
"Sorry you had to see that but that thing looked hungry for pony flesh" Spike said, he looked at the ponies he saved "Carry your day folks".
Spike walked to the castle and went back to his room, Spike looked through the book of creature and monster and found the creature "A Yamcha, this creature thirst for blood is unfathomable but is very strong, it's favorite is ponyblood and is very strong" he spoke "Yeah strong my dragon tail" he scoffed.
"I took it out without trying" Spike said.
Spike was brainstorming of what kind of dragon he wants to be "I know I will be both a soldier and a monster" he said, before reading his book again anything about on soldier dragons.