The legend of Eclipse

"Whatever did this wasn't caused by magic." Eclipse stated as he removed a head-piece with a lens over his left eye. "How can you tell?" Luna asked
"Swift wind gave me this for my birthday, supposedly it is able to detect magic residue and identify the being that used it." Eclipse answered putting the device away.

It had already been half an hour and Eclipse was already informed of what happened, Blueblood had escaped but left behind a note to a being by the name of Leon. Eclipse took the note and began to read.

Leon
The plan has failed, Eclipse has been set free and I have been found out, if things had gone differently I would be back at base by now with the structural weaknesses to Canterlot and have their precious prince dead. We have no choice now but to use what we have to take over.
You ally: Blueblood

"So this Leon person was being given information by Blueblood." Eclipse said

"Twilight said that Leon was being ordered by Blueblood but also that he was forced to do so." Celestia explained as she had decided to keep an eye on Eclipse for his safety.

"He could have been faking it." Eclipse replied as he looked over at the other item left behind revealing it to be a flag of some kind that Eclipse didn't recognise.
"Take this flag to the archives and see if you can find anything related to it." Eclipse commanded handing the flag to one of the prison guards, "In the meantime I want the dungeons under lockdown and the guards doubled, odds are this breakout will give the other prisoners a confidence boost." Eclipse ordered as another guard saluted and galloped off to sort out the doubling of the guard.

"And what of you sir?" Lucky Shot the pony who helped Eclipse in prison asked

"I'm going after Blueblood." Eclipse replied

"I'm going too." Luna said looking towards Eclipse.

"Thank you Luna." Eclipse replied

"Good luck son." Celestia said proudly as Eclipse and Luna left to find where Blueblood had gone.

"Take off in five minutes." The voice over the intercom said as Leon stood on the deck of the 'Phoenix' a military airship equipped with ten high speed mini-guns on each side each capable of firing 12,000 rounds per minute, five rocket pods capable of firing thirty missiles each at once, heavy duty armour, powered by a fusion reactor capable of keeping the dreadnought sized airship flying for months on end before needing to land and recharge.

"Quite the ship you have Leon." Sapphire said walking out towards Leon.

"Heh yeah." Leon replied

"Are all your ships like this?" Sapphire asked

"Hell no, this damn thing is only just out of the experimental phase." Leon said

"Still it's quite a sight." Sapphire replied

"Well the plan was for it to be unstoppable." Leon explained.

"Take off in two minutes." The intercom informed

"Well let's get back in there before we get locked out." Leon said as he walked into the inside of the ship.

"Damn it." Eclipse cursed as he punched the ground

"What's wrong?" Luna asked

"Bluebloods' trail has gone cold, his hoof prints are gone. Luna hand me that device I was using in the prison." Eclipse said as Luna handed him the strange headpiece. Eclipse put it on but was surprised on what he saw, the device was made to show residue of magic in the colour associated to the one using it so the magic that Blueblood used normally taking a gold colour should have been what he saw but instead he saw a mixture of purple, green, and black.

"Oh... My... Mother." Eclipse said in shock

"What is it?" Luna asked worried

"It's not Blueblood who used this magic." Eclipse replied

"What? If not Blueblood than who?" Luna asked

"It's... Sombra." Eclipse replied standing up "Luna we must return to Canterlot and warn the Crystal Empire. If Sombra has returned we MUST be prepared." Eclipse said not even waiting for Luna before he ran back to Canterlot.

"...And that is my offer." Sombra said explaining his plan to Blueblood

"So you take control of the world and I not only get to become the king of Equestia but also have my revenge on Eclipse?" Blueblood asked

"That is the deal and all you need to do is give this to the one known as Leon Mercer." Sombra answered

"Ah yes my runaway 'mercenary'" Blueblood replied

"Remember keep with the humans, aid them in secret and when the smoke clears you will be the one holding the crown." Sombra assured.

"I'll depart as soon as possible." Blueblood replied taking the note and leaving.

Leon sat at his desk in his quarters as he took a sip from a can of beer while looking over some reports, as he turned to the next report he saw an envelope with his name on it, curious he took the envelope and opened it revealing a letter which he began to read.

To Mister Leon Mercer
I an anonymous ally have sent you this to tell you of a great danger to you and your people, the being known as Eclipse Lunablade is gathering his forces and plans to go to war with humanity. If you want to keep the human race safe Eclipse MUST be eliminated at all costs. This is no longer the time for peace but the time for war. The choice is yours, either lay down and let this threat end all you have fought for or fight back and take what is yours.

As Leon put down the note he knew what had to be done for the good of humanity, and with that final thought Leon took hold of a phone and was immediately connected to Peter who was waiting at the beach where they had landed. " Peter, it's me I'm calling for a protocol Omega-9... Yes that's right, it's war."