Liz had snuck off after Kale's attack. She was on her broom, and saw that the girls were being ganged up on by the boys.
"Heheh..." she said quietly to herself, as she floated on her broom, hiding behind a nearby bush 40 feet in the air, with a bucket of water.
Liz quickly sped around the bush as everyone settled onto the beach, and dumped the bucket on the two boys. "Gotcha!" she called, grinning, floating about 10 feet up, avoiding their reach.