Molly Pepper misses her mom so much but life has gone on. Then she gets an unexpected letter and invitation to go on a mysterious Night Train. With her friend Noah at her side Molly sneaks out and rides the Night Train and goes to a carnival and an old prison. What she finds while there is an unexpected surprise and new hope.
This was fun book. Molly and Noah were interesting characters and the mystery of her grandfather and the tie in with the fireflies was pretty cool. I wish there had been more information about how the grandfather pulled the whole thing off but that is more of an adult curiosity.
I felt there was a bit lacking to this overall but I think kids will enjoy it.