A/N: Hi. I don't know what I'm doing here. I just had an urge to write these two again, and I felt like picking up with a blind Derek. This is just a little teaser. If there's an interest, I'll continue. If you have ideas or things you would like to see, let me know. If no one is interested in a continuation, forget I said anything. Haha.

Ten Years Later

From the front of a lecture hall at Columbia University, an aging golden retriever gazed out at the dozens of faces of fresh medical students, the way he had done for the past several years. His presence cast calm over the students, though they couldn't pet him due to the blue vest he sported that marked him as Derek's service animal. To Ollie, the young adults always looked the same in the beginning – eager – and toward the end of the semester, exhausted.

Derek's knowledge of the brain always left his students in awe. Though he hadn't been able to see a brain in ten years, he could talk, gesture, and feel his way through the models and diagrams like he had 20/20 vision.

He still sorely missed surgery. There was nothing that matched the feeling of adrenaline coursing through him while holding someone's brain, someone's life in his hands. But, over the years, he had grown accustomed to his role as an educator and a mentor and realized his importance in his students' lives and careers.

That afternoon, he was explaining the cellular composition of the brain, occasionally scribbling words on the whiteboard with the dry erase marker. His handwriting had gotten better since he first lost his vision, but as Addison liked to joke, it was so bad before that no one would have noticed the difference anyway. He had just finished writing "glial" on the board when he heard the door burst open.

"Dr. Shepherd?" The out-of-breath voice belonged to one of the third-year students. "I need to talk to you."

Irritated, Derek shook the dry erase marker in his right hand pointedly in the direction of the voice. "I'm in the middle of class, Landon."

"I know. It can't wait." With a gentle hand on Derek's arm, Landon helped guide him out of the lecture hall. The students turned to each other and whispered. Ollie stood, stretched, and dutifully followed them both into the hallway.

"This had better be important."

"It is. Your wife called the office. It's about your daughter."