Gretchen McNeil is the author of YA books including the Agatha Christie-inspired Ten; the Don't Get Mad series, coming soon to the BBC and Netflix; and the #MurderTrending series, continuing this month with #MurderFunding, an anarchic horror comedy about a reality TV show gone disturbingly wrong. We talked to McNeil about what really scares her, how her performer's past influenced her writing, and being the teen with all the bad ideas.