Actually, I'm not sure that I am - mostly because I have no idea what a Mobius Double Reach-around is, nor why it should be so inevitable.

It sounds complicated though, and this piece does kind of complicated things to the timeline, so maybe it's close enough. In fact, it's possible that anything of sufficiently advanced complexity is indistinguishable from an Inevitable Mobius Double Reach-around.

Anyway, this piece (probably/possibly) takes place prior to SeaTurtle's Triple Prime, and might even explain a little bit about just how my agents ended up in there:

~~~

Skeet and Amy stepped out of the portal and into the SO's office, the handheld chrono-tracker showing that they had made it to the right point in the timestream.

The SO wasn't there yet, which gave them time to hunt for the assassins. Suddenly, two (very familiar looking) human figures stood up from where they'd been hiding behind the room's large desk.

“You?” Skeet said.

“You!? I mean, me? I mean... oh hell, I don’t know.” The other Skeet said.

The Skeet and Amy that had been hiding behind the desk looked identical to the other pair, except for the fact that these ones had obviously recently been in combat. Their clothing was torn and patched, their faces smudged with dirt – the other Skeet had a bandage on his upper arm, and his Amy had a cast on her wrist.

“What are you doing here?” Skeet asked his doppelganger.

“We're here to kill the SO, before he can trigger the Sundering and the End Times.”

Skeet and Amy shared a look. "We're here to stop the SO from being killed, so that with his leadership the Board votes against the Department of Efficiency proposals, thereby avoiding the Sundering."

“Huh, well this awkward.” Injured!Skeet said.

“Yeah. Hey, wait a minute, why were you surprised to see me?”

“Because I wasn’t expecting you, dumbass.”

“Listen, smeghead, I wasn’t expecting you either. How does that work? We can’t have both got here before each other, can we? How would that work?”

The two Skeets began trying to work it out, using their fingers to represent different points in time and seeing if they could be moved into order, but then quickly fell back to insulting each other. It was left to their partners to try and sort it out. As the girls began to work things through, their partners moved on from insults, to arguments, to actual fighting.

“Er, guys?” Injured!Amy said. “We’re AUs of each other. This is our first meeting, from both sides.”

The Skeets looked up at her. Injured!Skeet had Skeet in a headlock, and had been trying to convince him of his superior reasoning powers via a series of blows to the head, while Skeet was preparing to make a cunning counter-argument by elbowing his opponent in the stomach.

“AUs? Radagast on a bunny sled, how much more complicated is this gonna get?”

“Quite a lot actually,” said a third Skeet, as he appeared out of a portal. This Skeet had short hair, was clean-shaven, and dressed mostly in white. A chatter of voices could be heard from the other side of his portal. “That’s why we formed the Council.”

“What Council?” asked Skeet.

“The Council of Us: all the Skeets, and all the Amys. We’re gonna sort this mess out.” He turned and walked back to his portal, calling over his shoulder, “Come on, you don’t want to be late.”

“Dude, we’re time-travellers-”

“Exactly, so think how embarrassing it would be for you if you were late.” Councillor!Skeet said, as he walked through the portal.

Four confused Assassins followed him.

They emerged in a large chamber, possibly one of HQ’s auditoriums. The grey walls seemed pristine when viewed from some angles, but were clearly battle-scarred from others. There were at least twenty different versions of Skeet and Amy in the room, several dressed in the identical simple black of a PPC agent, but some of them looked more distinctive.

As the last four arrived, a Skeet near the podium (this one wearing an eyepatch on his left eye) called for order.

“OK, now as I'm sure some of you have noticed, our efforts to go back in time and prevent the Sundering haven’t exactly gone smoothly...”

This brought a round of chuckles from his audience.

“...which is why we’ve decided to try and bring some level of rationality to our efforts. Now, we’ve got some visitors from even further in the future,” he gestured to four hooded and cloaked figures behind him, “but their involvement is going to have to be strictly limited. They’re basically just here so we don’t waste our time, but they can’t just tell us what to do – we have to come up with the solution that they used ourselves.”

He paused for breath, and was about to continue when he was pre-empted by a beeping from his pocket. Seconds later, another beeping started up from with the crowd, and an Amy rushed forward to the podium. The two held a hurried, whispered, conversation.

“Shit, sorry about this.” Eyepatch!Skeet addressed the crowd. “I’ve got a thing.”

With that ‘explanation’ given, the two of them disappeared through a portal, leaving confused mutterings in their wake.

Another Skeet took to the stage and took off his fedora, revealing that he too wore an eyepatch. “Right, well, now that that’s been taken care of – and I can assure you, it was very important – we can get down to business.

“First things first: it’s going to be difficult enough telling us apart as it is, so if you haven’t already adopted some ridiculous affection,” here he nodded at a pair of partners in full pirate regalia, “to make your appearance more unique, then I suggest you do so now.

“Next up, let’s start by mapping out the distinct timelines we’ve identified so far, and look for points of commonality and divergence...”