>>715815019
I also believe that. Especially considering how Hornsent grandam talks about it.
The curse is caused by vengeful ghosts of hornsent entering mother? fetus? at some point. Omen Bairns are sort of apology, offering to them. A defense charm.
>"Please, don't hate me, or curse me. Please."
This is a mother begging for her actual child to be spared. Take the doll instead.