Reviewed by Nihant G. (age 8)
I liked this book because it showed teamwork between Andy and Evan when they tried to control the monster blood. My favorite part of the book was when Evan bought the monster blood because his mom gave him twenty dollars to spend. This was the best part because Andy started whining because there wasn't enough monster blood for her to buy too. Trigger, the cocker spaniel, was my favorite character because he liked to play around. It was funny when Trigger accidentally ate the monster blood and that made him get bigger.
I recommend this book to all mystery readers. Students in grades three through five would enjoy reading this book. R. L. Stine is a great writer. He makes this book easy to read and interesting at the same time.