The Lost Sister by Andrea Gunraj
Andrea Gunraj is the author of The Sudden Disappearance of Seetha (2009, Knopf Canada), her first novel. The Lost Sister (2019, Vagrant Press) is two stories (or really two separate novels) which Ms. Gunraj has cleverly interleaved and zipped up into one considerable read, so that we have two stories, both with a "lost sister."