So it was poison. Still sloppy. Though if it was the previous saint, with her personality she'd have insisted on taking the cookies for herself, rather than allowing the orphans to taste any. But then again she would have tried to avoid going there in the first place, and she might've been suspicious about the poison as well. So it's still a very poor plan.
She can just excuse her poison resistance on being a saint. No big deal. If she can cure the orphans, she can cure herself.
He's like one of those animals you pull out of a pit that immediately just runs away and falls into another one.
How many cookies did she eat to end up with that belly?