"Janet and Edward are enjoying life in Doveby Dale, planning their carriage house remodel, when Mr. Jones arrives with a new and rather urgent assignment. Another agent has disappeared. While there are any number of possible explanations for the disappearance, none of them are good.
As Janet and Edward follow the missing man's trail from Edinburgh to Paris to Berlin, it begins to seem as if he’s disappeared by choice, which raises a number of other worrying possibilities."