"Eighteen-year-old Cass Issac doesn't believe in sticking around. She's had to move a lot due to her dads' house-flipping business--always a different school, always a new friend group. She's learned there's no need for drawn-out-goodbyes with people you'll lose touch with anyway. Which makes Grad Nite at Disneyland the perfect way to finish up high school, and have a magical last night with her best friend, Bryony--before she leaves once again. But...