6Intermediate. lex is a detective who investigates the ancient mysteries of remote civilizations, and Rikke is a young architect. When their paths cross in Santiago, Chile, they decide to travel together to Easter Island to decipher the mysteries that abound there. From the reader series Lecturas de Enigma y Misterio, a collection of graded readers set in different places around Spain and Latin America in which mystery takes center stage. Includes an Audio CD of the text.