Claus and Lavie's fathers died attempting to cross the Grand Stream to deliver a message from Anatoray to Disith. Empress Sophia obtains a copy of the original message and discovers it suggested the two empires join forces to defeat the Guild and obtain peace in the skies! However,to defeat the Guild, one must take possession of the Exile, so Empress Sophia plans to command the Silvana to cross the turbulent Grand Stream to locate the Exile. Can they accomplish this dangerous feat within the critical six days?