Life on Aqua - The Astronomer's Cipher

Book One of the VITA Cycle. Will is not from Aqua, but a parallel world named Earth. The 9th-grader improbably teams up with Pikabo, the pretty new girl, as they unearth the origins of Will's powers and the portals between worlds. The teens must decode clues and solve the mysteries of the Astronomer's Cipher as a powerful foe threatens their loved ones and their Life On Aqua. They can't do it alone, but who can they trust?