Making Big Bucks

What is it that makes the world go roun? Poor Tom Colman, Griller Spinks and their friends soon find out exactly what Lavender Gibson has in mind for spinning their world on its 'axle' : money! The Christmas holidays loom, the Greenhill kids are broke, and Lav intends them to change all this for the price of an advertisement in the Gazette, offering their paid services for the kind of jobs they always have to do at home for free.