Imagine Mrs Pumphrey came to know how Tricki was actually treated. Write a brief note to the narrator on her behalf. You may begin this way:
Dear Mr Herriot
I recently met Mrs Mallard when she brought her Pixie to visit dear Tricki. I spoke to her about the great triumph of surgery that had brought him back to me. Imagine my surprise when she told me how mistaken I was! I am writing to you to share……(continue)………