From: 5 Theories About the Season 4 Finale (And Who Will Die)
Horror
The Man in Yellow may be the one child never sacrificed — a lost boy corrupted by Fromville's evil into the entity controlling the town's nightmare cycle.
Scapegoat TheoryCyclical HistorySocial Contract TheorySacrifice and Ritual

Theory Briefing
- Viewers counted only 7 Ghoulish Children haunting Tabitha, but the talismans show 8 symbols — one child was never sacrificed, and someone still owes that debt.
- Tabitha and Jade freed the seven buried children's bones believing it breaks the curse, but fan theory holds they've actually triggered the obligation to complete it.
- Jade's mushroom-trip visions showed his past selves were killed by townspeople once his link to the sacrifice went public — hinting history could repeat in the finale.
- Victor or Ethan may be the reincarnated eighth child, making one of them the specific life owed to whatever dark pact originally created Fromville's trap.
- TMIY's long game, per the leading theory, is turning the townspeople against each other so they demand the final child's death themselves rather than being forced into it.