This document provides information and instructions for conducting a "Mystery Skype/Google Hangout" between two classes. Students from each class research their own state and develop clues without revealing their location. They then connect via video call and take turns asking yes/no questions to try and determine each other's geographic location based on the clues. The document outlines roles for students such as question askers, mappers, clue keepers and more. It also provides sample clues and questions to get started with the mystery location activity.