"It's H-Day--the 100th day of school for Hubie and his classmates. Mrs. Green decides everybody needs to bring in 100 of something to celebrate. But 100 of what? That's a problem for Hubie, whose imagination (as always) gets the better of him. One hundred hairs? Push-ups? Secrets? Complaints? What he does come up with is a complete surprise that amazes his classmates and Mrs. Green--and makes Hubie the hero of H-Day!"--Provided by the publisher.