Upon hearing the question, Eryn paused and frowned with a great deal of thinking going on inside her head. On one hand, such a simple question was something that was rather significant to her, given that she had a sibling and who that sibling was, and she didn't want to end up divulging her way into mortal danger. On the other hand, she had a feeling that Sean wouldn't take very kindly to any lies and she still felt indebted to him for what he had done. Taking a deep breath, she nodded after a short few seconds and replied, "Yes, I do have a sister."