After they had stored their weapons— which only Alaric couldn't put into the storage space and others had been forced to add to theirs— they then went to their rooms for final bathing.
Their instructors were still waiting for them in the great hall where Kat promptly drew Belialthorn and Valor aside to teach them the illusion spell.
Since Kat had studied the Illusion spell that the system gave Belialthorn, she was able to easily produce the formation and even made it into a ring for them.
They just put it on.
"This illusion is the most well-crafted I've seen ever before. To think Saylor can have something of this quality, then again he works with the energies of the world," Kat tapped the ring on Valor's hand as she floated before him. "It's like putting on a mask, a flesh mask where your powers aren't limited and you feel everything the illusion feels."