In the sixth book you will again meet a girl from the 21st century. While walking along the shore of a tropical island, Alice and Pashka find a bottle with a note. The note contains coordinates. Well, how can you not visit there? The Earthlings return the Atlanteans to their planet and disappear themselves. Communication with the ship was suddenly interrupted and cannot be restored. Alice and her friends go to the Gai-do to solve this riddle. Contents: The End of Atlantis The City Without Memory