After the utter relief that she had managed to slow down the book without hitting anyone with it, she decided to pay MORE attention to where she was going to throw the book. Just in case she like..failed in slowing it down. Not that she hadn't gotten the spell right, but anything could happen. She'd rather not have to take anyone to the healer's.

Perhaps she should not use the book? Maybe use something lighter and preferably that had no edges that'd poke someone's eye out. Not feeling like wasting time while searching for another item she settle on facing the wall. Seemed like the perfect solution for now.

After picking up the book, the fifth-year stood facing the wall carrying her wand and book. She brought her hand backward then let for of the book as she brought it back forward. As the book flew into the air, her wand was already pointing at it right when she spoke. "Arresto Momentum," That should do it, eh?

She totally was concentrating.

Cassia remained standing watching the book slowing down then plunging down a couple of feet from the wall. Good.