"Hel-Grin, the center of the earth" is an exciting science fiction book that opens the reader to incredible adventures in the depths of the underground world. The author reveals to the reader the unique world of Gel-Gryn, where unusual creatures and mysterious ruins meet. The main character, while on the way in search of the lost city, will face the dangers and secrets of this amazing place. An exciting plot, vivid images and unexpected turns of events make this book exciting for a reader of any age. "Gel-Grin, the center of the earth" is an exciting journey into the world of fiction, which will leave an unforgettable impression and encourage you to think about your own capabilities and strength in the face of incredible challenges.