Jack's eyes widen at what is most certainly magic, which he'll be excited to ask the man about, as soon as they make sure he doesn't drown. He's met a few witches, with Rowena being the most powerful one he knows. He's done a little magic with Sam too, low level stuff. A question for another time.

He shakes his head and tries to fly into the room, blink and teleport so maybe he can help him that way, but he can't get through it even with those powers. It's not just his strength. Impressive. He quickly writes. 6 SYMBOLS, NOT NUMBERS. That hopefully does give him a better idea of what he's looking for. Symbols stand out much more to the eye than something like a handful of numbers.

He really hopes he's not going to have to watch his new friend drown to death.