The Great Creek Rescue Project

Ben hated RISK.
After the new kid at school had an accident in the creek behind the forest, RISK was all that everyone at school was talking about. RISK that they might get hurt in the playground... so kids stopped playing. RISK of slipping while running, so everybody walked... slowly. RISK of this, RISK of that, everywhere you looked. The neighborhood was gripped in the fear of RISK, and not a smile was to be seen.
It was completely over the top, and Ben couldn't handle it anymore. Worst of all, the forest was now a forbidden zone, because there was a RISK that someone might trip or fall. Their tree house might as well be on another planet. With the end of school and summer fast approaching, something had to be done, or they risked their summer holidays being ruined forever.
RISK, RISK, RISK!
... And then Alice gets this crazy idea about saving the salmon because they're at RISK too, but the Project Kids aren't even allowed to go down into the creek to clean it up!
It looked like an impossible project. But then, they had done the impossible before...
Parent/Teacher Note:
This next book in the Project Kids Adventures series sees the kids leading an environmental recovery project and learning to manage Risk.