Dave and Skipper think this is the work of some dreaded green cookies. (Eat them at your peril.) But a cookie's a cookie, and Dave can't resist taking a peck. Now Skipper is in quite the flap! Is Dave about to turn into a zombie?

Or are those animals actually just in fancy dress?

Totally silly, eye-wateringly funny and unrelentingly energetic, this is the perfect series for emerging readers.