the boat’s details to the coastguards, they will make sure the owners know that the coral reef is a protected area.”
Antonia started to swim round the pink seafans. It was like swimming in a huge garden of flowers. The corals were so colourful. She loved them all, from the palest pink to the vibrant cerise ones. As she swam, a plan of how to find the boat causing the damage was forming in her head. She was almost ready to share it when she noticed Cai signalling upwards. Antonia followed him and broke through the sea’s surface at the same time as Spirit, creating a sparkling blue fountain of water.
Cai gulped at the air with huge greedy breaths.
“Sorry,” he panted. “I can’t stay underwater as long as you.”
“You will with practice,” said Antonia.
“Remember you are very powerful,” Spiritwarned Antonia. “Not every Silver Dolphin will develop all of your skills.”
Cai stared at Antonia in surprise.
“You never told me that,” he said admiringly.
Antonia shrugged, letting her wet hair flop forward to hide her face.
“It’s nothing really. Listen, I’ve had an idea. Let’s go home and walk round to the harbour. I might recognise the boat, and the lady on board, if I saw them again. Then we can get the name and registration number, and tell the coastguard.”
“Careful, Silver Dolphin,” warned Spirit. “Some of the boats are very similar. You must be sure you have the right one before you report it. I think you should wait.”
“But the owners might come back and cause more damage,” said Antonia.
“Spirit’s right,” said Cai reasonably. “It won’t solve anything if we get the wrong boat.”
“I suppose not. I just hate waiting.” Antonia sighed heavily.
The sea began to churn and Bubbles suddenly appeared from underwater, followed by Dream.
“I never felt you coming,” squeaked Antonia. “Too busy talking,” teased Bubbles. “Have the Silver Dolphins finished, Dad? Can they play?”
“They can,” Spirit agreed. “Have fun, everyone.” Spirit gently rubbed Antonia’s nose, saying, “Don’t worry, Silver Dolphin. You did your best.”
“I can’t help worrying,” said Antonia quietly as Spirit swam away.
“Seaweed tag,” said Bubbles happily.
He dived underwater, then surfacing behind Dream, flipped a crinkly strand of brown seaweed at her. “You’re ‘it’.”
Antonia tried to forget about the boat as Dream chased after Bubbles, tagging his tail with the seaweed before he could dive for cover. Bubbles flicked the seaweed on to his flipper then took off after Antonia, who neatly somersaulted out of his way. Bubbles slowed and rolled on his back as if he was thinking. Then suddenly he righted himself and leapt after a surprised Cai.
“It,” clicked Bubbles tossing the seaweed. It fell a metre short and Cai laughed, then divedunder water. Snatching up the seaweed, Bubbles gave chase, tagging Cai as he did a clumsy somersault turn.
“Aw!” Cai exclaimed.
He swam towards Dream then suddenly changed direction and threw the seaweed back at Bubbles.
“It,” he whistled, triumphantly.
“Not bad!” clicked Bubbles. “Your swimming’s improving. But you’d go faster if you used your hands like flippers instead of that funny thing you keep doing with them.”
“That’s breaststroke,” said Antonia, swimming over.
“Teach me how to do flipper hands,” Cai challenged Bubbles.
“It’s easy. Just move like this,” said Bubbles, demonstrating with his flippers.
Cai copied Bubbles and ended up swimming in a circle.
“It helps if you keep your fingers together,” said Antonia.
“That’s better.” Dream swam alongside, clicking encouragement.
Cai practised some more and managed to swim in a short wonky line.
“Well done,” said Dream kindly, as he stopped for a rest.
“That was brilliant,” Antonia agreed. “Look how far we’ve swum. Perhaps we’d better go back now? I didn’t have time to tell Claudia that I’d left