For listeners of Megan Nolan and Sheila Heti, a mesmerizing Borgesian literary debut about the frayed borders between our bodies and minds. Ada lives a solitary life. She spends her days in her London apartment building’s swimming pool, occasionally visiting with her cousin Francesca and meeting her friends, each of them chatting, drinking, posing invitations Ada ignores. Ada’s parents are recently divorced after her father became a bodybuilder: he spends his days at the gym, which is crowded an