The idea of this book is really intriguing, and I wish it lived up to all I hoped it was. The concept of people who were born on February 29 being able to leap through time is super cool, and I loved that this book was led by a young, Black, autistic girl.

However, the main plot line, the mystery of who wrote some notes, was hardly the focus of the book, and it was common for the subplots to overshadow the mystery solving. Because of this, there was no real sense of urgency or tension, and any emotion felt about the mystery was equal to other scenes that didn't seem relevant to the overall story. I felt like many scenes were included just to lengthen the plot rather than advance the plot or character development.

Again, the premise of the mystery, someone threatening to expose the existence of Leaplings, is intriguing but fell flat for me. Almost every person we encountered in the story knew of Leaplings, even if they shouldn't, so it didn't make sense why the threat of Leaplings being exposed was scary.

The constant switching between locations and times was often confusing, and not every travel scene made sense for the story or characters. Overall, I found the characters to be a bit flat, and the plot got lost amongst the other events in the story. The relationship between Elle and her grandmother was cute and heartwarming, but that was one of the few aspects of this book I truly enjoyed.