This study was aimed at integrating English novels into a Korean high school English curriculum. To accomplish the objective, the study adopted diverse post-reading activities using an English novel, The City of Ember by Jeanne DuPrau. Data were collected from diverse sources such as students’ worksheets, transcripts of students’ presentation, answers to survey questions, and the teacher’s field note. The results of the study are as follows: First, there were some educational effects when an English novel with diverse post-reading activities was used in high school English classrooms. Students showed a positive attitude toward the class and expressed satisfaction in terms of classroom management. Second, students responded to the novel through diverse post-reading activities. For example, students had opportunities to reflect on their lives, became active in solving problems, and deepened their thoughts through discussion. Based on the results of this study, suggestions for future studies are provided.