The temperature where Rosa was a moment ago has dropped about forty degrees—if she would just hold still and stop chasing Brie—

...well, there's a solution to that. It's not really one she likes, but she'll take it.

Jones takes a moment, shuffling through the things on the nearby side-table—she's not breaking her best teacups—before grabbing a particularly heavy book (And Understanding of Fate, borrowed from the library) and throwing it at Rosa's head. "Hey! You!"