The Story of Lex and Livia: Time of the Twins

Lex, an impulsive military cadet, and Livia, a pampered Airess, have just found out they are twins, which is against the law in the great City of Indra. Now they are leaving behind the only world they have ever known. 

With help from the charming and handsome Kane, Lex's best friend and Livia's newfound love, and Zavier, a gruff rebel who would prefer to leave them all behind, they make the grueling trek through the dangerous underground tunnels toward the Outlands beyond the dome of Indra in search of the mother they thought was dead. When they finally reach the Outlanders' colony, they discover their mother holds the key to unlocking their past, and they must confront an ancient prophecy, "The Time of the Twins."