Samuel takes time to check in with his sister Husk , who works for the school full - time .
Cannonball teaches a course in flying ; those who have no natural flying abilities use jetpacks .
Cannonball takes time to check in with Cannonball 's sister Husk , who works for the school full - time .
Cannonball teaches a course in flying ; those who have no natural flying abilities use jetpacks .