A question regarding pangea and Carboniferous period.

So I'm basically working on a story set in the Carboniferous period. specifically in the missisipian epoch,

The thing is, I can't find any reliable information about how was the earth at that time regarding continents. I know the missisipian epoch lasted a long time, but I would like to know if you know how many continents / subcontinents were at that precise moment. The story is about two characters who have their different stories and, in the end they meet in the middle of both paths (maybe at Tethis sea?). I thought about setting one story in Gondwana and the other one to Laurasia but I just read both subcontinents didn't exist at the same time? I'm a bit confused and I wonder if anyone here could help me :)

(sorry for my english, not main language)