Since its debut in 1996, DEXTER'S LAB has been one of Cartoon Network's top-rated shows. Now Scholastic teams up with the boy genius and his pesky sister Dee Dee for original chapter and picture books Oh, no! Dexter's lab has been invaded -- by a rodent! And who would've thought that such a tiny little mouse could wreak such havoc? Ro-Dent has chewed through all Dexter's computer cables, munched on his floppy disks, and made mincemeat of his robots' wiring. Dexter knows he has to catch that mouse and get rid of it! But when Dee Dee decides to make Ro-Dent her pet, their sibling rivalry reaches epic proportions.