''Well, I guess it is enough. Ten points for my House. Oh, and Krum, next time, do let me put the fire out. They say acid does the trick... although they also say it leaves a tickling sensation.'', Wilson said. ''Now, since we are dealing with Merpeople and since this is Defense Against the Dark Arts, what better way to learn about them then to face them. You will all use the Bubble Head charm, which you should know... whoever doesn't can go back to the castle with a T, and go underwater. The Merpeople live in the depth of the lake, as you should know. Now, to make things more interesting... I was to liberal to ask your Head of Houses to give me something valuable to you. I have done the same for my House. (You get to improvise what it is, a small object... whatever you have and find valuable). Those little objects are packed inside little boxes that you will find beneath the surface. But... they are guarded by merpeople, which means that you will have to use your wand. Now, you can begin.'', Wilson said. He looked at Elijah again. He flicked his finger, levitating the snake out of his robe. ''Lovely snake, Krum. Vipera Evanesca'', he said, making the serpent disappear. ''I may not know what you are saying, but I can recognize what language you are using. Now, go!'', he said.