"Sea Change" is an entertaining, fast-paced, complex story in which the main character becomes a pawn who is manipulated by lies and deceptions. In 1721, England is in financial trouble due to the collapse of the South Sea Bubble, which began when the government's unfunded war debts were converted into shares of a new South Sea Company. When the shares rose in value and then crashed, a financial crisis occurred that seems familiar to us today.
One of the victims of the crisis, William Spandrel, a mapmaker who is now deeply in debt, is summoned to the home of Sir Theodore Janssen, a director of the South Sea Company. Janssen offers to pay off Spandrel's debts if he will deliver a package to his friend Ysbrand de Vries in Amsterdam. Spandrel delivers the package, but is later arrested for de Vries's murder. When Spandrel learns that de Vries's wife, Estelle, and his secretary, Zuyler, have run off together and that the package is missing, he realizes that he has been set up. After he manages to escape, Spandrel is determined to clear his name and he pursues Estelle and Zuyler in a fast-paced chase across Europe. As he tries to catch them, he also has to contend with British agents who are trying to recover the package and its secrets. He meets with one deception after another and learns that no one can be trusted and that he must rely only on himself to survive.
The story has many characters, both real and fictional. Fortunately for the reader, Goddard includes an Appendix which contains a who's who of all the names. He also includes a useful glossary of 18th century terms that are mentioned in the story.