Code Quest is a narrative non-fiction series that challenges the reader to solve historical mysteries. Each title presents a unique, interactive story in which the reader learns about historical codes, pictograms and symbols by completing various code-breaking tasks.

While looking through documents connected with the Titanic's maiden voyage, a journalist discovers that he might be related to a pair of fugitives, who disappeared from his home town and perished in the disaster. He follows a trail of evidence, along the route of a memorial cruise, in order to discover the identity of the runaways and the reasons for their flight.