Author CHRIS CLEAVE masterfully raises questions of morality in his novel Little Bee, which chronicles the journey of a young Nigerian girl who escapes from a refugee detention center and ends up in suburban London. The novel was inspired by Cleave's own experiences with refugees at a detention center, and his subsequent desire to highlight the injustices to which refugees are often subjected. Cleave discusses Little Bee at the Margaret Mitchell House as part of his national tour. $5-$10. 7 p.m. 990 Peachtree St. 404-814-4150. www.margaretmitchellhouse.com.