Code of Rainbow

This is the third book of a teen fantasy book series that nurtures the bloom of MAGIC in the soil of SCIENCE - something rarely attempted. The transition from magic to science will be bit by bit, so the early books do read like a "mainstream" magic fantasy. Due to a shocking discovery, Soarame now has to undertake a new dangerous journey with his friends. He must cross the largest, most deadly ocean in the world. Battling more powerful, evil wizards, he was forced to escape underwater, and stay in the bottom of the ocean for weeks. But how could a teenage boy survive underwater, especially that there were lethal creatures down there? And what further perils are waiting for him, if he really survives?