The exact reason why remains unclear.
The Sparrow Academy siblings were, after all, oddly cruel to their adopted father.
It also seems unlikely thatThe Umbrella Academyseason 4’s timelinewould contain its own, alternative version of Sloane.
Consequently, there was no reason forThe Umbrella Academy’s season 4 timeline to contain any marigold children.
Whether due to lack of time or narrative convenience, that doesn’t happen.
Unfortunately, Sloane is not among them.
Custom image by Yailin Chacon
If the marigold never existed, then Sloane was never born.
If Sloane were alive, thenThe Umbrella Academy’s final, single timeline could not have been created.
However, as they grew older, the siblings grew apart as they dealt with their trauma.
The Umbrella Academy is based on the comic book of the same name created by Gerard Way and Gabriel Bá. The Hargreeves — collectively known as The Umbrella Academy — were born with superpowers, and their adoptive father utilized their abilities. However, as they grew older, the siblings grew apart as they dealt with their trauma. They are brought back together after their father dies and Five returns from the future with grave news: The world will end, and The Umbrella Academy has to stop it before it happens.