[Quote=@Rakurai]I seriously doubt that Tiamat would sacrifice Mary's life for the baby (since I'm assuming partners are worth more to the spirit than a common human). [/quote]

Even doubly so for Tia. Unless I'm downplaying the loyalty of the Spirits to their Partners, Tia could never put anything above Mary, not even her own safety. Sure, she will try to keep as many people as possible from getting hurt by her human's stupid antics, but when the cards are put in play, she will abandon them all to hell for Mary.