A Magic Spring enables the Green Kids - Victor, Maya, and Tiago - to talk to and help animals with their habitat problems. In this story, the Green Kids are visiting their friend, Moshe, in Israel. Victor and Moshe are preparing for a fishing trip on the Mediterranean Sea. Maya thinks she sees a mermaid, while Tiago gets caught up in some fishing line as he tries to help a monk seal pup. What did Maya see in the ocean? Can Tiago free himself and the monk seal?