The “strange” war in Dimmir, which became a grandiose massacre for the Dark Ones, has ended. The best magicians of the victorious Lakris gather on the floating island of Dorottayne to learn and stop the Darkness itself, bursting from behind the Wall. A recent graduate of the Academy, Luret Kror, nicknamed Blue, arrives on the island to take part in research, but finds himself caught in the weave of intrigue among archmages fighting for power and deciding the fate of the world. His sister Lyra, nicknamed Red, enters into an agreement with a necromancer and follows the trail of an unknown dark magician, whose shadow killed her comrades. What role did the older brother Luret, who long ago went over to the side of Darkness, play in their fate, and who is the cabin boy Jerkis? Darkness keeps its secrets well...