As Heidi, Saffron, Ruby and Astrid approach the end of high school, a huge question mark hangs over their future. It's the summer before forever. Will they find a way to stay in each others lives, or is this goodbye?
Siding Springs Observatory is in danger of closing and resident astronomer Helene McKenzie is the only thing standing in the way. Battling an inept local council and with a ragtag bunch of colleagues, her fight is set to be an uphill one.
