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'WandaVision': Does Agnes work for Hydra? 'Agents of SHIELD' Easter egg holds vital clue to her motives

Agnes' pendant and a mention of mind control soap hold major clues as to what's really going on in Westview

Spoilers for 'WandaVision' Season 1 Episode 3

Though initially an important — albeit distant — part of the Marvel Cinematic Universe, 'Agents of SHIELD' eventually grew apart from the movies, branching out into its own separate continuity. Nevertheless, the series and the MCU still share a tangled history, and one of the major parts of that is the evil organization Hydra, which has begun rearing its ugly heads once again in 'WandaVision.'

'WandaVision' has made several references to Hydra during its run, mostly in its advertisements. Last week saw the mention of the "Strucker" watch — a reference to the Hydra agent played by Thomas Kretschmann who was responsible for the experiments that created Wanda Maximoff (Elizabeth Olsen). This week sees an advertisement for "Hydra Soak" — a blue luxury bath powder, which invites consumers to "escape to a world all your own" — something that Wanda appears to be doing with this new reality. Blue soap from Hydra has been seen before, however, on 'Agents of Shield'. 

An eagle-eyed viewer on Twitter spotted the similarity, pointing out that on the show, Phil Coulson (Clark Gregg) mentions that Hydra used "blue soap" to be able to mind control SHIELD agents, to have them believe that "this is a magical place." Hydra, was, of course, revealed to have infiltrated SHIELD right from the beginning, a revelation that happened both on 'Captain America: The Winter Soldier' and 'Agents of SHIELD'.

With Agnes (Kathryn Hahn) seemingly aware of the false nature of Wanda's reality, some fans are speculating that she's a Hydra agent, working to keep Wanda controlled in a slice of reality that keeps her subdued and happy. Whether Hydra is truly involved or whether Wanda is just remembering her past is something the show has not made clear yet, but either way, Agnes is worth keeping an eye on — which is what leads to another important clue regarding the character that is revealed this episode.

'WandaVision' has hidden a number of Easter eggs in characters' accessories — from Vision's diamond tie, representing his comic book diamond-shaped emblem, to the SWORD pendant on Geraldine's (Teyonah Parris) neck. This episode, Agnes has her own pendant — and it might spell doom for Wanda's newborn children, foreshadowing what's to come.

While it's hard to say with absolute certainty what the above pendant contains, what it looks like is two boys, split apart by the Grim Reaper, who holds a scythe in between them. It's an image that makes a lot more sense when you consider the fate of young Billy and Tommy in the comics — when it was revealed that the boys were not real, but created by Wanda's magic, the boys' death led to the power of their souls being stolen by a demon, Mister Pandemonium. Though Pandemonium was defeated, the boys' souls were lost — until they were found, years later, in the bodies of Billy Kaplan and Tommy Shepard, revealed to be the long-lost souls of the sons of Vision and the Scarlet Witch.

Agnes may or may not be aware of the boys' forthcoming death — the show might in fact deviate from the comics enough for the boys to stay alive, even — but if something does happen to the twins, the signs were clearly there. The boys' death might even be a part of Agnes' plan overall — especially if it's a way of capturing Wanda's tremendous power.

The next episode of 'WandaVision' airs January 29, on Disney+.