Crystal Doors Books in Order

Fourteen-year-old cousins Gwen and Vic are accidentally transported to Elantya, an island combining magic and strange technology. Caught in conflict with sea-dwelling merlons and rival sages, they must also confront questions about their own families.

Gwen and Vic are kidnapped by their underwater enemies just as they learn that Vic's missing father has reached Elantya. Imprisoned beneath the sea, they face the dark sage Azric and discover a threat to their island.

Gwen, Vic and their friends prepare to challenge Azric through the magical Ring of Might. When Sharif's flying city of Irrakesh falls under attack, their battle moves into the skies amid competing demands of duty and destiny.