Gus is a very large, very special green dinosaur - and he makes the perfect city schoolbus. Or does he? He causes traffic jams, gets tangled in telephone lines, knocks down traffic lights, and creates potholes with his big stomping feet. If the principal fires Gus from schoolbus duty, how will the thirty-ton dino find a new job? Lynn's wonderful, sketchy watercolour and pencil illustrations recall old classics, as does the pleasantly preposterous story of a dinosaur who just wants to be helpful.