Oh man I loved this story! It was wonderfully creepy, and lead the listener in the exact opposite direction then what it ended up in.
I think this story plays strongly on Tarot card meanings, and as a big fan of card readings I thought it was amazing!
My take on the ending was this: Rebecca realizes in the end that her Mother had gone through the same situation as her. She was that baby 20-something years ago. "The High Priestess" Tarot Card (Drawn for the Babysitter) can represent hidden secrets, and often can tell a reader too look more deeply into the situation to reveal the truth.
The 8 of Swords is drawn for Rebecca. That card represents someone hopeless trapped in their own thoughts, but also represents that that can also only escape that trap by trusting in themselves an looking at the situation from a different angle.Rebecca pulls back the veil behind The High Priestess at that moment, and knows that her Mother was sane (Maybe), and her son is not evil (Maybe), and that she needs to make the same choice her Mother once did.
Like with her Mother, Rebecca realizes that that it's too late for her husband. He's been corrupted by the dark forces at work and would never allow her to do what must be done. She smothers him and runs away with the child, to try and raise it in the same manor her Mother raised her.
An interesting note as well is that she pulls "The Devil" tarot for the baby. Which, to someone who doesn't read cards, would probably represent evil, Satan, etc. However, The Devil in Tarot represents something entirely different. He usually represents strong desire, addiction, self-delusion, or self-enjoyment, even when it's at the cost of yourself. The card usually shows a person below the throne of the Devil, with a chain around their neck. However, they can easily choose to remove the collar from their neck and move forward, but are so caught up in the moment they choose not to. Rebecca was so focused on the thought that her baby hated and feared her, that she was refusing to remove her chains and move on. The power to change the situation was in her, not the doctors, her husband, or the medications.
Really loved the story!!!! Excellent!