She has come to his office to give birth, but she is accursed and he knows it. Fortunately, she has chosen wisely and she can afford the best phy-magician in the country. He will safely deliver the demon inside her, and then he'll help her to determine who would cast such a spell on her in the first place.
This is an age of science in magic. A phy-magician must master both trades with equal alacrity.