Seven-year-old Stink Moody discovers that he can get free samples by writing letters to candy companies and plans a surprise for his best friend's birthday.

After Judy obtains a mood ring, she tries to convince herself and her third-grade classmates that she can predict the future.

"The lucky penny in Judy Moody's pocket sure does seem to be working. She can't stop winning-at bowling, spelling, the unbeatable Prize Claw, everything! For sure and absolute positive, she'll ride that wave of good fortune all the way to Washington, D.C."--