like a bird in a cage

“Shh, don’t fight me.” 

Flashback to when they’re first captured by the cult (which imo is the same cult that dark!Ciel is a part of at present). So they’re captured by a cult who has a specific grudge against the Phantomhive family, right? We still don’t know why they have the grudge, but the Phantomhives have lots of enemies so there’s really no telling. 

BUT, my theory goes kind of like this: Ciel and his twin make a pact while they’re captured that if one of them should survive, they living twin will assume the role of “Ciel Phantomhive” and lead the Phantomhive family from then on. Which is pretty basic, but here’s where it gets complicated haha. 

Dark!Ciel says that “you stole the candy from my tummy”, and while that could be taken literally, I think it means “You sacrificed me to save yourself” or “you stole my chance at surviving”. So what I think is that the Ciel we know in some way managed to orchestrate the other Ciel’s death. His self-preservation instincts and absolute regard for his own life was what summoned Sebastian in the first place (the fact that Ciel would “kill” his brother in order to escape). Sebastian saw that and thought Ciel was worthy of a contract. So our Ciel takes over the role of the queen’s guard dog as a way to honor the deal he made with his brother, who was the real Ciel, being the older twin. 

So how is the other Ciel alive then? Undertaker. It’s my belief that he’s been working with the cult and resurrecting people for the purpose of bringing back Ciel’s twin, and they finally succeeded. That brings the question: why go to that much effort to bring back Ciel? 

“P-put me down at once!”