In The Mystery at Rattlesnake Ridge, you will encounterò One Rattlin' Rattler! One Rattler Round-up! One Rattler Rodeo! One Rat??? And one Ooooh, What is that Sound?Avery, Ella, and Evan love wildlife...but some wildlife is just wilder than others! In this exciting mystery, these real kids, and new friends, encounter a whole lotta shakin' going on in rattlesnake country! But when that shakin' is coming from an about-to-strike rattlesnake-Y-Y-Yikes! Before they know it, the kids are mixed up in an adventurous mystery where clues require them to use their best science, technology, engineering, and math skills to find the answers! Can they solve the mystery before the rattlesnake strikes?! Before they know it, the kids are mixed up in an adventurous mystery where clues require them to use their best science, technology, engineering and math (STEM) skills to find the answers! Mystery books have always been a great higher-order, critical-thinking genre, and the "real Kid characters" in this series eagerly get into using high-demand STEM skills to solve each mystery!

In this mystery, there are additional pages filled with STEM materials you can use to learn about and solve problems such as:
1. Impress your friends with your knowledge of rattlesnake facts
2. Discover angles
3. Examine engineers, what they do and the various types of engineers
4. Explore the difference between Herpetology and Herpetologists
5. Learn about animals and their scientific names
6. Discover etymology of reptiles
7. Explore the difference between cold-blooded animals and warm-blooded animals
8. Investigate why Antivenom is Important
9. Learn how to read a chemical formula
10. Discover wind turbins
11. Explore Anemometers

This mystery is geared for boys and girls ages 7-14 and features bother and sister, Avery and Evan, who help their mystery book writer grandmother solve wildlife related mysteries. The Wildlife Mystery series has a strong focus on STEM.

Like all of Carole Marsh's Mysteries, this mystery incorporates history, geography, culture and cliffhanger chapters that will keep kids begging for more! This mystery includes SAT words, educational facts, fun and humor, built-in book club and activities.

Below is the Reading Levels Guide for this book:
Grade Levels: 3-6
Accelerated Reader Reading Level: 4.7
Accelerated Reader Points: 2
Accelerated Reader Quiz Number: 165489
Lexile Measure: 730
Fountas & Pinnell Guided Reading Level: Q
Developmental Assessment Level: 40