This lake was so scary. She was scared to move an inch could htat would mean falling into the water. Wand light needed to go off so she could see. Now. Sextant needs to find horizon. A brief Shiver went over her. She hated being outside. Nessie was about to move on, so she should too . Thankfully there were other students there though. Maybe she was shivering from the breeze? She did not know, yet what she did know was that she did not want to be outside for longer. She found he horizon, now she needed to press down clamp and put Polaris in the same place as the horizon... Good. Now realease clamp. Maybe just swing for fun. Awesome. Measurements, now she need her wnad for light as she wrote down on a partchment:

This Hogwarts interference was really something.. the results really did vary. Wait Nessie was leaving? Sarah ran as quick as her legs could carry her away from lake. She did not want to squid to pull her in by mistake or something