I recognized Heidi from the stamp-sized photograph in the obituary despite the years, and even though her last name was different. How could I not? I’d sketched that face so many times, not only while we were together but for many years after. My surprise was that she’d returned to Pittsburgh. Often, I’d seen her face in a mall or a restaurant, only to be mistaken. Now, I wondered if at least once it had been her. Seventy years young, died of cancer, survived by two children and an aquarium of fish.