The department has a desk for you.

A suspect has an answer for everything. A witness remembers the wrong moment. An ordinary object refuses to fit the story you have been told.

Three complete mysteries bring you back to the department. Join detectives, crime-scene technicians and medical examiner Laura as they question suspects and work through the evidence. Then the team turns to you: What do you think?

Follow the investigation from the first interview to your own accusation. Compare accounts, question assumptions and decide which details matter before opening the solution. The recurring cast brings expertise, friction and humor to stories that put you inside the investigation.

This volume contains: The Apology Club, Everything Must Go, The Second Emergency.

Optional hints and separate solutions let you choose when to ask for help and when to make your case.

This reading edition includes reflection prompts and linked hints and solutions. You can think through your answers or use a separate notebook; it does not contain fillable answer fields.