Yvonne Liu knew from a young age that she was adopted, but she didn’t know the details. All she knew was that she had been left by her birth mother in a busy stairwell in Hong Kong. It wasn’t until she was 30, on the night before a critical surgery, that she was given a handwritten note in Chinese that transformed her understanding of where she had come from.Meanwhile, Lynn Domina had never envisioned herself as a mother — until she met Amy, a spunky 8-year-old who was obsessed with “Harry Potter.”On today’s episode, we hear from two women about their adoption journeys and the emotions and discoveries they’ve experienced along the way. Subscribe today at nytimes.com/podcasts or on Apple Podcasts and Spotify. You can also subscribe via your favorite podcast app here https://www.nytimes.com/activate-access/audio?source=podcatcher. For more podcasts and narrated articles, download The New York Times app at nytimes.com/app.