Oh no worries, I'm used to canon blindness with Susan. You're welcome to read her App but, it's a bit TL;DR.

(All you really need to know is that she's utterly unsurprised by magic, is very sensible, and is generally a Gothic Mary Poppins. She doesn't give a whit about politics, or royalty, and Discworld is very blase on the concept of Good vs Evil.)

I'm not sure if they'll get along, but I'm excited to find out. :D