Read the excerpt from "Object Lesson, Part 2." "No sign of the original envelope?" "No." "I found two boys with bills — in each case a single, too. David Strager and Joey Buell. No envelope." Louise's brows met. Ellery glanced up at the clock. 9:07. Why do these words create tension? They create a conflict between the boys. The sudden movement surprises the reader. They make the reader wonder what will happen next. They speed up the pacing of events.