Witch's Castle

In the final volume of the collected works of the science fiction writer Alexander Belyaev, his lesser-known novellas and short stories about brilliant discoveries and inventions are included. Is it possible to use the energy of ball lightning for good? How can one fall asleep for many years and wake up in a new world? What will help provide the entire planet with endless food? Belyaev's heroes are tireless researchers. Some of them work for the benefit of humanity, while others pursue their own gain. But bold experiments can be unpredictable, and one must be ready for anything.