Originally Posted by Swanman
Except I don't think we see the birthing until the second shadow is "born" to kill the castellan at Storm's End (not sure on location). The shadow that murders Renly just shows up out of nowhere and Davos escorts Melisandre to take the stronghold later on. But I did read the books a while ago so maybe I screwed the order up.
In the books the birthing of the shadow baby is to kill Penrose who is holding Storm's End after Renly is killed by the first shadow (we don't see that one being born in the books). The show has eliminated the Penrose aspect of the story as it is unecessarily complicated to explain on screen, so I think this shadow baby on the show will just be to kill Renly. One shadow killing is enough for the show I guess.