Overall, this is an excellent picture book. The plot of the story was suspenseful, and I liked how throughout the story there was always something mysterious going on. I think the author found a good balance of making the story spooky and suspenseful without it being too scary. Additionally, the pacing and storyline of the book were very well-written. The timeline of the story and Maddy and Grace figuring out what happened with the haunted house seemed realistic, which I liked. Additionally, I like how the author added clues throughout the scenes, so the reader can figure out what is happening in the story alongside Maddy and Grace. The colorful illustrations also helped me visualize the various spooky scenes that occurred in the haunted house! Lastly, I liked how the book showed the importance of following the rules, even if you are trying to find out the truth!