Arabella-Marie was walking past the lake when she saw students doing something fun and she walked over wondering what was going on and then she reliased that they were going to look for treasure and she walked forward ready to take part and she stood at the edge of the lake for a few minutes and then she took her clothes off and waded into the lake and had her wand by her side in case she needed it and she took a deep breath and plunged under the water and saw the chest that she was looking for and quickly came up for some air and then dived under again and swam towards the chest when a couple of grindylows tried to grab her and she fought the grindylows and got her wand out and then she swam away continuing towards the chest and put her wand away and swam towards her destination ...