This classroom-based action research aimed at helping the students enhance their skills in identifying literary devices in narratives using the Author’s Tool Box in analyzing a text. This was conducted in the school year 2018–2019 in one of the schools in Cluster 7. Students were purposefully chosen to participate in this action research as they were found to fare poorly in identifying literary devices in narratives. Identifying literary devices is a paramount skill in developing practical and creative skills in reading and writing fiction, poetry, and drama in the subject of creative writing, which is one of the specialized subjects in the Humanities strand of senior high school. However, there are still students enrolled in the creative writing class who have not yet mastered the skill. The Author’s Tool Box, which is the intervention used in the study, is a graphic organizer that allowed the students to identify and organize the figurative language found in the reading selections. The results of the tests gathered before, during, and after the intervention were analyzed using charts comparing the scores before, during, and after the intervention. Observations on students’ behavior and participation during class discussions and group activities were also used to support the results. Results showed that the Author’s Tool Box in analyzing a text helped the students improve their skill in identifying figurative language in narratives, as revealed in the results of the pre-test, formative assessments, and post-test, and the participation of the students during class discussion and group activities. Based on the results, it is suggested that this strategy be used in teaching the above-mentioned competencies. Moreover, the teaching of literary devices should not be taught in fragments but in the context of the literature.