Celestia and Luna felt it before they saw it. Like a stain on a untented wound that had been left to fester for too long finally got uncovered spreading foul odors and sickness. Flying to the north the sisters immediately started their cleansing, eradicating those accursed growing towers that were spreading that ominous shadow. As the crystal towers fell by the hundreds so did their creations, the fake dragons and diamond dogs shattered at their passing, some tried to intercept them but their efforts proved futile as they all shattered at the end. As they neared the source of the shadow they were surprised to find a city of such magnitude so far into the north, none of them remembered ever hearing or seeing it before, but they will get to the bottom of it soon.
"Stop it! Stop it now Sombra!" The Doctor confronted the king as he stomped down hard, shattering the crystal that consumed his sonic device while his back was turned. King Sombra paid him no heed as he just casually moved back to the center of the throne room "Now Doctor, you and the heavens shall witness the true power of MY EMPIRE!!" and with a roar King Sombra unleashed a wave of pure dark energy to the top of the flaming tower causing the flames to blow out and explode so violently the shock waves were felt all across the world. Celestia and Luna had just arrived over the empires air space when the explosion took them by surprise; the wave strong enough to forced them both to land but they both felt it, the blast carried something else, something that now was slowly encasing them inside the same dark crystal they had been destroying on the way here.
All around the city the civilians stopped their march and fell where they stood. The harnesses let go of all of them and as if they were alive they slithered away like snakes, towards the fallen princesses. Luna had moved next to her sister to help her orient herself when the first sets of harnesses bit down on her rear hooves and right wing. Back in the palace the Doctor look down in horror as the sister screamed in agony as more and more chains wrapped around them; he finally saw what the King real plan was all along "Those chains weren't there to restrain them, they were to absorb their pain and misery not just for your shadow, but so that you could inflict all of it to the next poor soul" looking back at the king he felt revulsion at what he saw, King Sombra was in pure bliss, hearing their screams wasn't enough no he wanted to drown in it, so much so that he transferred his mind into the harnesses with every intention of making their end as painful as he could make it. "And once again Doctor, history has finally been corrected, wouldn't you say?...Doctor?".
His victory was suddenly stripped away because what he saw next wasn't the glaring eyes of the Doctor. It was an annoyed Doctor fixing a broken down pocket watch "You dare-?!" now the Doctor glared at him "Oh shut it you, now no wonder I was confused bloody thing got loose when I landed in the water!" Closing and reopening the watch he smirked at King Sombra "Oh sorry, got bored, not really my thing- well only with River but thats beside the point; now I'm surprised because yes like you believe 'This' is a pin point in time, everything that happens now happens so I must applaud your ego....but you have forgotten one Itsy bitsy problem" King Sombra only glared "I do not make MISTAKES!" at that the Doctor laugh out right "Oh but you want to listen to this! When is the Doctor ever alone?".
At that moment the glass Window over his throne blew to a thousand pieces reveling Zeke blasting his way threw. To protect himself from the glass Sombra created a shield of spikes from them ground and proceed to launch them at where Zeke had popped out from only to hit air, because the cape covered his wings Zeke use the falling shards to cover his flight as Sombra just assumed that he was an earth pony, from over to behind the King. Next thing Sombra knew the rags that Zeke was using for a cape was wrapped around his face and like a sling Zeke threw the so called king against his throne rags and all. "So thats why you made me dress like this?".
Back in the ground the chains slacked as the control from King Sombra was abruptly disconnected. Celestia and Luna wasted no chance. In a twin pillars of light the princesses broken free and with a glaring glance they destroyed the accursed chains to ashes. At the same time Sombra had recovered from his head blow when both Princesses appeared before him. Sombra just lost it, years of clever planning gone with one single act 'he would never accept it, the universe was his and only his!' he launched himself at the princesses deciding to win with pure force!
Above them the magical dual had begun; Zeke fallowed the Doctor to the bottom of the tower where he was explaining that main controls of the entire city were there "Quickly now we don't have much time!" at this Zeke got confused "Why not? Cant you hear that?" he pointed at the shakes and the explosions "Sounds to me like that lunatic its getting what was coming for him" scanning the floor the Doctor revealed a panel where he proceed to type like crazy "Yes I would agree! Except he is not just a mad pony! He is a egomaniac mad pony! In other words if or in this case when he loses the city will-" Zeke now looked up worried "Wait he would destroy this whole city just because he lost?!" another explosion "Yep!".
"Alright! The city should have several functions to save and preserve it, if I just could find-BLAST!" the Doctor slammed the controls. "What's wrong?!" Zeke was flying over him "Theres no power! The original battery has been moved! what he had been using as a power source was his shadow! Blimey that fist explosion was probably the original battery getting zapped!" Blocking some falling debris "So cant we do the same thing!"
"With what? What we need is something so powerful that can affect the whole city, the Tardis is miles away, we wont make it in time!"
"Well cant you find anything else nearby!?"
"Hold on lets me-" suddenly Zeke felt a force pulling him at the center of the floor
"WHOA! HEY!!" Without using his wings Zeke was left hovering in the spot being forced to spin around each time faster and faster
"DOCTOR stop this crazy thing!!"
"Wait a minute why-!!!!!!!!!!!!!!!! EUREKA!!! OH YOU BEAUTY!! HA HA HA!!!!"
"Doctor?!"
"When you crashed into my Tardis! Your body got bombarded with Atron energy! Normally it will slowly leave your body; But the system has reached for the closest energy source and WHAM! It picked you!"
"I'm getting DIZZY!!" Zeke was spinning faster and faster holding his mouth
"Not to worry, you will pass out after getting all of it sucked out of you!"
"WHAT?!"
"Now say CHEESE!!"
"NOT FUNNY!!!!!!!!!!!" and the world turned white.