Black stone of elves. The fall of Shannara

For centuries, the world reigned on four lands. But everything has changed with the advent of strangers. Their magic is frighteningly strong. Among the druids there is a traitor who has become a spy of strangers.
At the same time, someone begins to hunt for the former Supreme Druid Drisquer Ark and his student Tarsha Kainin. Tarsha, who seeks to be close to his brother, who was distraught by the power of magic as soon as possible, has to help his teacher.
But there is almost no time to search for answers. The black stone of the elves, hidden in the cache, is about to appear to the world. Then the guard of the citadel will break from the chain. And the battle will be awake, which will forever change the future of four lands