High Tide, , HarperCollins Publishers, Summer Waters,Children’s / Teenage fiction: Fantasy,Children’s / Teenage fiction and true stories, underwater;magic;swimming;adventure;environment;Antonia;Bubbles;green;charity;pollution;rescue;charm necklace;Cai;beach,, , United Kingdom, en-GBhttps://www.harpercollins.co.ukunderwater;magic;swimming;adventure;environment;Antonia;Bubbles;green;charity;pollution;rescue;charm necklace;Cai;beach, [BLURB],[CITY],,books, ebooks, biblet, Book2look