Dave Pigeon (Zombies!)

Help! There are zombie animals in the garden! 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? Completely daft, eye-wateringly funny and unrelentingly energetic,...