The Master Chief is missing and no one, not even his wife, knows where he is. In this activity, your students will become CGIS (Coast Guard Investigative Service) agents and find out the real truth about the Master Chief. This activity is great for 5th and 6th grade readers. This activity covers the following reading core skills: predicting, clarifying, context clues, asking teacher-like questions, characterization, drawing conclusions, making inferences, and summarizing. It provides