The Etheric Empire is making final preparations to cross the Gate.In the run-up to departure the Etheric Academy goes through some changes as the students get a taste of the future awaiting them after graduation. The classes are split, and new friendships form as Tina, Ron, Yana, Maxim, and Nestor take their first steps toward adulthood.

A visit to Earth is on the cards for Tina, Ron, and Maxim, but is it REALLY a good idea to let the kids go down to the mud ball again? Jean Dukes is left with no choice when sabotage forces a shutdown at an important TQB facility in the UK.

There's intrigue at the castle and the kids can't resist. As the mystery unravels they will discover what it means to fight for what's right.