The World Without Part 3 - Glenn Ric - Bog

Following the return of the seven lost Life Elements to the World Without in Part 2, A land in Peril, Rise of the Fras, Part 3 of the World Without trilogy sees the Marou and Fras rediscover many of their lost powers .
With this came a new prosperity and short-lived peace, leading to complacency and disunity among the Marou. Seizing new opportunities, the Fras gain the upper hand by corrupting the Elements and unleashing a tide of destruction and mayhem.
The boys and the Marou desperately search for an answer to this new period of unrest and power imbalance, eventually finding that the Essence of Life is missing. But in their attempt to find and return the Essence, the powerful Fras intercept them, and banish the boys to a place out of mind. Attacked and overpowered by the Fras, the Marou are forced to flee to their last safe-haven and, despairing, fall into conflict.
The Fras overran the besieged Marou as the boys escape the place out of mind to join the Marou's battle with the Fras, where the means to restoring the World Without is finally revealed.