The strange characters are the arcane symbols on the floor. SC and BH are Shayuri and yourself, respectively. Everyone else is currently outside of the room (in the revealed map)
Oh, sorry about that Binder. With everything that's been going on, I've sort of gotten a little sidetracked with the checks. Lemme come up with something and I'll PM it to you within a few days.
You guys are certainly welcome to try anything you'd like. Just to make it easier, the Strength check DC to get out of the ropes if 20, Acrobatics is 20 as well.
You guys are welcome to continue your interactions. Don't wait for me to update you unless something happens that requires my attention. I will provide a small update to some previous checks a little later.