Sander noticed that other students had just joined their line. The Professor had told them to let newcomers know that they had to perform a sparks test on their wand, so he did just that.

"Professor Bellaire wants us to test whether our wands are working or not. We're supposed to do the sparks test," he whispered to Alex,Sophie and Bay.

He wished he could tell them how to do it but he himself wasn't sure whether he had done it right. Was there other way to do a sparks test on your wand? Sure he could have used the Periculum spell but that sent out jets of sparks and somehow he didn't think it would be appropriate indoors. He could have used the Verdimillious charm which also emitted green sparks but that was usually used to reveal hidden objects or to hurt your opponent. So that was definitely out.

So many options. Sander just hoped he hadn't messed up and chosen the wrong one. His current old age symptoms made reasoning difficult.