Something strange is happening to the sixth gradeand its up to student scientist Wilmer Dooley to crack the case in this hilarious mystery filled with entertaining twists and nutty characters (Publishers Weekly).

If theres one important thing Wilmer Dooleys dad always says, its this: Where are my car keys?

Okay, maybe not that. He also says: Observe!

Wilmer has always known that the greatest science comes from the keenest observations. So when he observes his classmates looking a little greenand orange...and chartreuse-fuchsia polka-dotted...he knows that its up to him to find the cause of this mysterious illnessand its cure.

But with his arch nemesis, Claudius Dill, hot on his heels; the eagle-eyed biology teacher, Mrs. Padgett, determined to thwart his plans; and a host of fluorescent classmates bouncing off the walls at increasingly dangerous speeds, can Wilmer prove he has what it takes to save the sixth grade from a colorful demise before its too late?