Betrayed by Mykl, the man she loves, Amelia sees the message in the stars, confirming the impending cataclysm. Having located Sundoor the girls, with Maddy and Lucy and a small group of friends, are chased across the Sahara desert by ruthless mercenaries. Outnumbered, out of supplies, and also up against a local tribe of Arabs; 'The Gate Keepers'; the three girls must solve the deadly riddles of the 'labyrinth'; the gateway to 'Sundoor', and face Ryxyl herself.