Lyric discussion by eBuna 

Cover art for Pearl of the Stars lyrics by Coheed and Cambria

I'm almost tempted to say he's saying "our baby" instead of "a baby," but I can't be totally sure.

It sounds like 'our' to me.

Very well could be "our baby" - if Year of the Black Rainbow is a prequel to the other albums, then "our baby" could be Josephine, Coheed and Cambria's first child. No idea for sure though, I haven't read the novel that goes with the album.

bomb it has to be Josephine. Claudio sings "our baby she's" the twins were about 3 or 4 when Coheed poisoned them. and since its a prequel and there are no references to the other children esp Claudio then process of elemination states that its her.