“What happened?” The light brown colt with a stunning green tie asked the mare with a blonde mane with a confused look on his face.
“I think it’s best to show you.” She replied flatly as the painting opens up to a secret hallway, “Welcome to the Under Gallery.”
While those two ponies and young Minuette trotted down the secret hallway behind the painting, one of the employee’s ear pieces rang quietly. This stallion in particular was a white coated pegasus pony with a royal blue mane, and stunning blue eyes. This employee’s name is Aqua Glide.
“Hello?” Aqua asked the other pony on the phone. As the colt got a response, he looked down at the phone. “That’s not possible, I was just…” He was cut off as the pony on the other end of the call spoke, “Understood sir. But why would I take it there?”
As the three ponies trotted into the room, a glowing sand cyclone appeared in the corner.
“Oh no!” The Doctor looked at the cyclone and panics, “Not now, I’m busy!”
Minuette looked at the Doctor and then up at the liquid-looking cyclone with confusion, “What is that?”
The Doctor looked back at Minuette as he frowned, “This is where I come in.” The Doctor galloped into the cyclone and jumped into it.
“ALLONS-Y!”
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Just a passing Comment: If you are going to use the fan-artwork of DeviantArt(ist) Rannva for your cover image, you should credit her for it.
The first Weeping Angels' episode with Doctor Who #10 (David Tennant) is one of my favorites, that episode scared the [derp] out of me.
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The Doctor Who series is 50+ years old, with 12 different actors ("regenerations") having played The Doctor across the decades. For MLP:FiM's version of The Doctor (or "Time Turner" as he is labeled within the MLP:FiM-verse), he was based upon Doctor Who #10 of 12 (David Tennant), so you only need start from there, rather than from the humble black-&-white BBC-television beginnings of the Doctor Who series .
Here is a short summary for you...
The Doctor (not "Doctor Who") is the last surviving member of a cosmically-powerful order of near-immortal guardians called The Time Lords.
The mysterious Doctor wanders throughout Time & Space, in his time-machine called The TARDIS (it is an acronym). The Doctor aids/saves those threatened by annihilation, combats evil forces that threaten to grow out of control, and safeguards the "natural" flow of time as befitting his station & duty as one of The Time Lords, even though he is the last of them.
The Doctor consistently travels with a Companion, most often a human female from Earth, because he favors their unpredictable "wild card" nature which aids him in this adventures, travels, and battles, and to ease the heavy & tragic burden of being the last of his kind.
The Doctor Who series is very good in the overall. There are reasons why the series has endured for over 50 years.