Sander finally reached the Astronomy classroom. It took him a lot longer than usual because that was a heck of a long climb and he had gotten strangely tired even before he reached the fourth floor of the castle.

Breathing heavily, he peeked into the classroom. He noticed the Professor squatting down next to a large fish tank and wondered firstly, what kind of fish he had in there and secondly, was that the same tank he had occasionally noticed the Professor carrying around the school grounds.

Sander was about to step into the classroom and walk up to him to greet him when he noticed a lint roller lying on a small table just outside the classroom and frowned. He read the sign. 'Okay not to be used for hair. That's obvious. But what is it doing here?" Sander thought to himself.

Then he saw a student pick it up, roll it on their robes before placing it back down and then proceeding into the classroom. Shrugging his shoulders, Sander figured that there was no harm in him using it to clean the lint of his robe either. So he picked it up, rolled the roller along his robes before placing it back down on the table for the next person to use.

With that done, he stepped into the classroom and approached the professor to greet him. "Hello Professor. Nice fish you have there." he told the Professor before wandering off to find an empty desk to sit at. He looked around and was disappointed to see that Tessa hadn't arrived yet.