This week on The Reading Life: Susan talks with historian Blain Roberts, co-author, with her husband Ethan Kytle, of “Denmark Vesey’s Garden: Slavery and Memory in the Cradle of the Confederacy.” Who owns history in Charleston, SC? Roberts talks bout historical quandaries in memorialization and the whitewashing of slavery --in landmarks, monuments, museums, tours for tourists. And there's a surprising detour into musical territory as well. Here’s what’s on tap in the literary life this week: Kim