After retrieving two more sample collections from the halfway mark and the center of the lake, Professor Sciuto led her students back into the castle. They stomped their feet and sighed in relief as the heat within their classroom washed over them. Mandy was heard complaining that there had to be an easier, and warmer, way to collect water samples using magic. Abby replied that they needed to learn how to perform the procedure properly before going the lazy route using magic. "Besides, there’s also the chance that you might contaminate your vial if you need to check for magical substances or residues. Better to do things the muggle way than to get false readings."