Ethan Herd remained silent for a moment, then said, "Your grandparents are an old couple with only Mrs. Herd as a daughter. Based on Mrs. Herd's age, when they... had Mrs. Herd, they must have been at least 65 years old, which is an age at which it's impossible to have reproductive capabilities.
Scarlett Glenn's eyes gradually widened, "That is to say, my mother... is not their biological daughter."
Ethan nodded, "Right, I've been investigating Mrs. Herd's background, but I could only trace back to her arrival at the old couple's home when she was about five or six years old. Anything before that, I've never been able to find out. I was hoping to figure it all out before telling you."
Scarlett Glenn bit her lip; the revelation Ethan Herd shared wasn't as shocking to her as one might have expected.