Why things might have happened

[Janet]

This is all very interesting. I stumbled, at first, at the mention of rhesus disease. But a quick investigation tells me it's just what we would call Rh incompatibility. It turns out we're lucky to have you in more ways than one, then, Merry.

[Olde Crone]

My ex husband's first wife gave birth to twins at home, not knowing she was expecting twins. The first twin survived, the second didn't, because of rhesus disease.

OC