Overall, this book was a great read. First of all, I liked the concept of telling the story from the perspective of a child actor, and I think the author did a good job of capturing this tone. We were able to see multiple parts of Sammy's personality, like the maturity he has gained from acting, but also the innocence he has as someone who is still a child. The plot itself of the book was very exciting, and I liked the idea of Sammy being the one to find the counterfeit bill and later being the one who investigates it. Additionally, I enjoyed how this book was fast-paced and full of adventure. No part of the story felt dull or dragged out.  This book took place in the 1940s and the author's language throughout the book, such as mentions of listening on the radio for the news and newly founded Coogan legislation protecting a child actor's earnings, made it seem realistic that the story was taking place in that time period. Overall, I think this is a great book for readers looking for a book filled with adventure and mystery!