Professor Flitwick stood calmly behind his desk, on the tall stack of books he needed to see over the top of it, as the seventh year students filed into the room. He cleared his throat as they began to settle and they all turned their attention to him.
“Good morning class. Today we shall be learning the Disillusionment Charm. This is a very tricky bit of magic but will come in incredibly handy. The Disillusionment Charm is used to hide the true, magical nature of a person or object. It in essence causes the recipient of the spell to become a kind of chameleon, blending effortlessly into its surrounding. And indeed, if the caster is strong enough, this charm can be used to render something or someone completely invisible. I am sure you can see the practical ramifications of such a spell.
He clapped his hands together. "Now, you may have noticed that I have not paired you off into partner groups, as have many of your other professors. And indeed I am not going to. I find you all work much better when you are sitting with students of your own choosing. But be warned! If there is too much socializing I will be forced to separate you!"
“Very good! Now, on to the spell! The incantation is 'Abolesco' and the wand movement is a sharp tap on whatever, or whoever, you wish to disillusion. We shall being today by disillusioning these tea cups,” he pointed to a stack on his desk, “and move on to more complex items in a later lesson.” He held up his hands. “Now, before we continue I must strongly caution you against the misuse of this charm. If I hear of anyone using it to cause mischief or mayhem they will automatically fail this class and be unable to take their NEWT in the subject. I trust you all understand.” He gave the class a stern look. “Very well! You may come collect your tea cups! I shall be moving about the class to help correct your technique. You may begin!”