For centuries, peace reigned in the Four Lands. But everything changed with the arrival of strangers. Their magic is frighteningly powerful. Among the druids there is a traitor who has become a spy for strangers. At the same time, someone begins to hunt for the former Supreme Druid Drisker Ark and his student Tarsha Kainin. Tarsha, who strives to be near her brother, maddened by the power of magic, as soon as possible, has to help her teacher. But there is almost no time left to search for answers. The black stone of the elves, hidden in a cache, is about to appear to the world. Then the Citadel Guardian will break loose. And a battle will break out that will forever change the future of the Four Lands...