A free trip to the Northern Territory! Sounds good, thinks Marcus ('Mucus' to his sister Rose). But when his best friend Dylan joins the family holiday, mayhem is not far away. Fast-paced comedy-adventure from award-winning author Barry Jonsberg.Blacky the farting dog has a mission that Marcus and Dylan can't refuse. Trouble is, this mission involves a monstrous saltwater crocodile who would much rather chomp on a human for dinner than have a civilised conversation.Of course, there's also the small matter of a giant big-game hunter on a collision course with our heroes. And will Marcus be any match for his mean older sister Rose and her light-sabre-wielding best friend Cy Ob Han?Blacky the master of disguise is back, full of attitude and smelly as ever.