Oh. A challenge. He sees what she's done there. He sees it and he likes it, listening in silence and watching her mouth as she goes.

It's incredible. Literally like nothing he has ever heard. There are distinct sounds, but it's almost like one big long word. If he didn't know any better he'd think she was messing with him and quoting that one place in Wales that everybody makes fun of.

But Ariadne probably doesn't know what Wales is, so maybe he's safe.

He squints, running it back through his head and attempting the tail end.. Terribly garbled but it was an attempt nonetheless. Like a child might try to emulate.

"Again? Slower."