Makina was dead.  She was the fifth Kampii to “accidentely” die in the City of Shifting tides (an underwater city), and Aluna needed to know why.  She needed answers.  She was smart enough to figure out that this was no accident. The breathing shells must be faltering.  And where do you find answers?  Where no one has looked.  So Aluna and her friend Hoku, who knows so much about mechanics and technology, would travel to the Above World to find HydroTek, the makers of the breathing necklaces.  The problem is, no one has seen HydroTek in years.  So on their insufferabel journey, making new friends and enemies along the way, Aluna, Hoku and friends, with the help of Sarah Jennings, creator of all Kampii, the will try to save the City of Shifting Tides.  The challenge is- how will they save themselves?