I want to add to that, that AFAIK little W got "handpicked" to come to these foster parents, because they wanted a pair of siblings. The sister already was in care anyway, and it might be, the baby William as the sister's bio brother was given to the foster parents all too willingly by authorities. The bio parents (especially the bio father, it seemed later) were desperate for keeping William, but it wasn't allowed. I never heard, they were desperate to get the sister back, probably they had come to terms with her foster care, but they were so very attached to the baby son. I know, there were drugs and violence between the parents in the play. But who knows, if their chance to keep William, couldn't have been better without this certain wish of the foster carers to get siblings. MOO