"The Secret of the Crystal Castle" is an exciting fantasy novel about the adventures of a young girl named Lilian, who travels through a mysterious and magical world. During her journey, she discovers amazing places, incredible creatures and dark forces that threaten this world. The reader, together with the main character, experiences all the obstacles, adventures and trials that accompany her in search of answers to the questions hidden behind the image of the Crystal Castle. Will Liliana be able to reveal the secrets of this amazing place and defeat the evil that threatens the whole world? "The Secret of the Crystal Castle" is a book that fascinates, fascinates and transports the reader to the world of magic, adventure and eternal struggles.