Fred wasn't far behind, chuckling. Peeves, who had probably come when he heard the ruckus, flew over their heads. He cackled when he saw the swamp and joined them. "Weasleys!" he sing-songed, pointing.
Fred glanced at Peeves, rolling his eyes. "It'd be great if we could shut your mouth. You do know if you give us up, we'll not be here to cause so much fun," he taunted, hoping it would work on the poltergeist.