Solaris is a young dragon whom the Elders ordered to avenge the death of a thousand hatchlings and bring death to the royal house. He was sure he would deal with the newborn human princess without hesitation—but he was wrong. Captured by the guards right by her cradle, Sol was cursed forever and bound to Princess Ruby by unbreakable ties. Now he can fly only together with her as her rider.
Seventeen years later, on the border of the two peoples, a mysterious red fog appears—within it, people vanish in entire settlements. Almost of age, Princess Ruby, as heir to the throne, is obligated to destroy this terrible affliction. For that, Sol and Ruby must return to the very beginning and untangle the web of intrigues of both peoples in order to find out why the Red Fog can no longer be stopped.