|This article is about Lily Stone. You may be looking for Lilly or Lily Conductor.|
Intrigued by a chance meeting with Mr. Conductor, Junior, after being put on the wrong train by Billy's dog, Mutt, she takes a magical journey to the Island of Sodor to help Mr. Conductor. With Thomas' help, Lily manages to alert her grandpa and helps to bring Lady back to life.
- Lily has a stuffed bluebird which she takes along with her.
- In the original script, Lily, telling the story to her children twenty years later, was the narrator.
- Nobody knows what happened to Lily's dad. In the original script, he is away at work.
- In the original script, Lily has an unborn sibling, which is the reason for her going to visit her grandfather.
- Her hairstyle resembles Becky's hairstyle during Season 2 and 3.