The Price of Cement, Swimming Pool Fencing Laws, and Year 6 Mathematics

These are some of the things I've had to research while finishing up my latest novel The Big Dig, forthcoming in July this year (if I can get it done in time!). Anyone like to guess what it's about?

Email me with your ideas and I'll post them here when I have a few. If anyone gets close, there might even be a prize!

Hint: if you live in the City of Melville, you may have something of a head start. In a curious alignment of planets, I am writing this from Civic Library in that very city. More on that another time.