His second novel, “Grow Where They Fall”, shifts between the wonder of childhood and the existential pangs of 21st-century adulthood in South London. Michael Donkor’s elegant reflections on sexuality, class and British-Ghanaian identity dominate his latest novel. The author and former English teacher discusses his experience as a Black person in modern Britain, the challenge of inspiring a love for literature in the classroom and what the recent election results could mean for British society.