E. Nesbit, an English author who is considered as one of the finest storytellers in children literature, brings her readers to a magical world beneath the sea in the fantasy adventure, Wet Magic.
The story begins when four siblings set an excursion to the seashore for the holiday. Accidentally, one of them summons a mermaid and shortly afterwards, the children set forth to save a captured mermaid brought to the circus. When they rescued the imprisoned one successfully, they were rewarded with a delightful journey under the sea into the secret kingdom inhabited by mermaids and mermen who dwell among other strange sea creatures. But they soon find themselves embroiled in an escalating tension between their newfound underwater friends and the other sea folks - they must act quickly to prevent the war and save the undersea world.