"Weird guests" is a beautifully illustrated science fiction novel which offers a highly unusual solution to the mystery of the construction of the Egyptian pyramids. The writer told us two different stories in one book, and he compared different time dimensions, space, and places. He quickly transforms places, time and story and keeps the attention of readers. This novel follows a group of high school students on their mutual school trip and a main female character, Mary. Mary discovers a secret of pyramids and connection with her past life.This book is something new and stimulates the imagination of children. This novel is read once but one can dream about it for a long time.