This is an automatically translated description

The main character of the first part of the new series «Call of the Deep» by German writer Tanya Stevner Alley — Water Girl — has long lived with the fear of touching cold water and always wearing gloves became the norm for her. The girl had no parents, so a woman named Marianna became the most important person in her life. One day, she would suffer a heart attack: seeing her foster mother «sweaty and pale as chalk», Aleya immediately called an ambulance. Marianna was sixty-five and had long had heart problems. From then on, the heroine's life would change rapidly and open up new horizons. Here she is on the «Crucis» with her friends: two young men, Sammy and Ben, brothers. They live a carefree life on their uncle's boat and have already visited almost every continent. How will Alley survive with his cold hives at sea? There is so much water nearby!

One evening, Marianna advised her to swim to Renesse and find her own mum there. For the teenagers, this will be a crucial task, as well as the beginning of unravelling the mysteries. There is a commotion on deck as a storm is approaching and the heroine is thrown into the sea by a strong impact on the waves. In the blue depths, strange changes began to happen to her body: the growths on her arms changed into swim membranes, and gills appeared behind her ears. Alya is a real mermaid! The girl will swim in the sea more than once, explore the underwater world, meet whales, searching Fynia and gnomes....