Beck was a wizard and spy at the "Spy Academy".
He makes a cameo at the new school.
He introduces himself to the wizards and goes training with them.
He fights in the big battle against Ther'mos and his assistant.
He is shocked at the return. He is involved in the battle. He sits by the main characters at lunch.
He makes a cameo in a few classes.
He appears at the lunch room talking with the main characters. He fights the villains in the battle.
It will be mentioned that he was killed in action by the ghosts.