You are beside yourself. You just received an urgent e-mail from your great-aunt Valeria. The e-mail explains that she is being held captive by Tómas Lamas, a fellow historian and author. Both have been traveling recently with a group on a sponsored research trip the Easter Island . On the island in the middle of the Pacific Ocean sits a collection of huge stone carvings. The Moai have been the subject of speculation for centuries. How did the native people move and carve all that stone? And why? You great-aunt explains, that she has developed some fascinating theories about the giant statues, called Moai.
Tómas Lamas is after her findings. As an attachment to the e-mail, you have received your great-aunt's documents. You are supposed to forward these documents to her publisher, before Tómas Lamas can extract the information from her and take credit for her findings. Unfortunately when you open the attachment, the text is not readable, all the letters appear scrambled. Your great-aunt is begging you to help her. Her freedom, life and career will depend on your report. Do not fail her.