Olivia jotted down the factors that could possibly affect water divination. Clarity was one of them. She smiled and continued writing in her notebook before returning to pay attention to the lesson. Alright. Choose three different shaped rocks, wash, and dry them. Okay, she could do that enough. One square, one circular, and one triangular! Perfect. All three. She eyed her wand and debated whether or not to perform the scourgify charm for a moment. She decided to wash it the good old fashioned muggle way. Slipping out of her shoes and socks, Olivia rolled up the bottom of her trousers and sleeves. Then she headed towards the water. One toe at a time, right?

Ohhh... That was cold. She felt the hairs on her legs stand up and a shiver run down her spine. Biting her lip, she continued to inch her way a little more into the water. When the water surrounded her ankles, she bent over and began washing each of the stones. Once they were scrubbed and free of dirt, she glanced down at them. Hmm... She'd have to find a way to make sure that they were bone dry. Perhaps a Hot Air Charm would work?

Pulling out her wand, she performed said charm with a complicated flick. All nice and dry. Right, stones and hands were clean. What next?