The Silver Dolphin — Louise Cooper

Lizzy Baxter is thrilled when her family moves to Cornwall â€" she's always loved the beach. Lizzy doesn't realise, but she has a special connection with the sea â€" and the mysterical mermaids and silver dolphins who swim there. But there's much more to the beautiful blue-green world than magic. The evil sea queen is plotting to steal something precious â€" something that belongs to Lizzy.

The Mermaid Curse quartet is a perfect blend of fantasy and reality for readers aged 8â€"10.