All the questions we still have about 'Loki' before next week's season finale

At the end of episode five, Sylvie and Loki uncover the way into the domain of the being behind the TVA (by enchanting Alioth, the "guard dog" that protects the only way into the domain).

The way in reveals a floating castle on a rock in the middle of what looks like space. But who lives there?

It's unclear exactly who has been behind all of this all along, but they have been responsible for creating the TVA, creating the fake Time-Keepers, and lying to everybody at the TVA about the nature of their organization.

It's not clear what the being's motivation is as of yet, but there are several clues pointing to its identity being one classic Marvel Comics character — Kang the Conqueror.

In the comics, Kang is a time-travelling entity who seeks to create his own temporal empire, so the secret domain at the end of time that Loki and Sylvie found would make sense if it belonged to Kang.

Kang also had several run ins with Alioth, so there's a connection there, too. Plus, in the comics, Kang and Ravonna Renslayer (played by Gugu Mbatha-Raw in "Loki") are lovers, so Ravonna's presence in this story could be connected to Kang.

Kang will almost certainly be part of the MCU in the future. Jonathan Majors has been cast in the upcoming "Ant-Man and the Wasp: Quantumania," and sources told Deadline he's set to play Kang.

However, we could see Majors in that role before then if Kang does indeed turn out to be the being behind the TVA and makes an appearance in the final episode of "Loki."

This domain exists somewhere in The Void. The Void itself is a point at the end of time where pruned realities are transferred to stop them from growing. It's the TVA's trash can, essentially.

Roaming The Void is Alioth, a ravenous entity that devours the pruned realities dropped into The Void. Sylvie works out that the entrance to the being's domain is actually being protected by Alioth.

She and Loki manage to enchant Alioth and, sure enough, the one entrance to the domain is revealed. It's unclear where exactly in time or space this domain is, but being beyond even The Void, it's almost entirely unreachable.

However, one believable theory could be that the domain exists in the Quantum Realm, which we first saw in "Ant-Man and the Wasp."

Scott Lang (Paul Rudd) got stuck in the Quantum Realm for a few hours when The Snap happened, and emerged what turned out to be five years later in the real world.

We know that time and the Quantum Realm are interlinked with one another in the MCU already. It would make sense if the being's domain was tucked away in the mysterious Quantum Realm, which seems to exist outside of time and space itself.

In episode four, we discover that Sylvie was taken from Asgard when she was just a child playing with toys. It's unclear what the Nexus event was that caused the TVA to interfere in her timeline.

Sylvie asks Ravonna, the agent who took her in, but Ravonna says she doesn't remember.

Given that most other variants have pretty serious Nexus events (i.e., Loki escaping from 2012 using the tesseract, or Kid Loki killing Thor), it's strange that the TVA decided to intervene with a child who seemed only to be playing with toys.

Perhaps there is a grander reason behind all of this — maybe one orchestrated by the being who created the TVA?

In episode three, after their TemPad broke, Loki and Sylvie were left stranded on Lamentis-1 facing an apocalypse with no way out.

However, they touched hands and shared a moment before what looked like inevitable death, and this caused a Nexus event. A branch spiked off of the sacred timeline and Mobius noted that he'd never seen a branch so dramatic.

Later in the episode, Mobius suggested in a conversation with Loki that it was this moment that caused the event: "Two variants of the same being, especially you, forming this kind of sick, twisted romantic relationship? That's pure chaos! That could break reality."

However, what seems more believable is that the event was caused by the two Lokis believing they didn't need to be alone.

If this theory is correct, according to whoever is in charge of the sacred timeline, a Loki's role is to be a villain who needs to feel alone. As soon as the two Lokis didn't feel alone, they betrayed their own TVA-assigned purpose and so, a branch in reality was caused.

This is backed up by Classic Loki's explanation of his own Nexus event in episode five. Classic Loki explained that after he faked his own death to Thanos, he went into hiding on a desolate planet and was completely alone.

After a long while, he started missing his brother Thor and made steps to get off the planet and reconnect with his family. That's when the TVA turned up.

So, while we may have to wait for official confirmation, it seems pretty likely this is what caused Loki and Sylvie's Nexus event.

Sylvie reveals to Loki in episode three that all of the TVA agents are actually variants who were taken from their own realities, had their memories wiped, and were made to work for the TVA.

One of those agents is Mobius, Loki's new BFF. Mobius has a thing for jet skis and reads a subscription to jet skis magazines. It's not clear yet where he came from or what his life was like before the TVA, but maybe his obsession with jet skis is a remnant from his old life.

Just before Mobius is pruned in episode four, he says this to Ravonna: "You know where I'd go, if I could go anywhere? Wherever it is I'm really from. Yeah, wherever I had a life before the TVA came along. Maybe I had a jet ski."

Hopefully, we'll get to find out exactly what Mobius' life was like pre-TVA. Maybe we'll even get to seem him ride a jet ski.