A new escapade from the cheeky merman! At home, everything revolves around the baby, and Jonathan has had enough: he runs away and moves into a caravan by the Baltic Sea. Hardly has he arrived when the merman shows up! And he causes so much mischief that Jonathan is no longer sure whether to be happy about his presence or not. Especially since the merman is head over heels in love and creates even more chaos! The third book featuring the merman - a turbulent adventure at the beach and the perfect story for anyone dreaming of the sun. With many colorful illustrations by Stefanie Scharnberg.