Read Inside Pages Great Book Series For Math LOVERS! 5-Pack Book Series Kids Ages: 8-12 Can't Put Down. Key Reasons Kids Love This Series: Math word problems keep them engaged Humor, to keep them smiling Relatable character options (four kids) Short, easy-to-read chapters Kids enjoy a good mystery Book Series Description: Stanley, Charlotte, Gertie, and Felix are just your typical twelve-year-old kids. They love to hang out after school...they love burgers and milkshakes...and they love math. And if there's one thing they love even more than math, it's solving mysteries! Thankfully, their hometown of Ravensburg, New York has plenty of mystery, and quite a few secrets. This set includes (BOOKS 1 - 5): Book One - The Case of the Claymore Diamond Book Two - The Case of the Mysterious Mr. Jekyll Book Three - The Case of the Christmas Caper Book Four - The Case of the Hamilton Roller Coaster Book Five - The Case of the Forgotten Mine Product Details: Format: Paperback Ages: 9 - 12 Grades: 4 - 7 Pages: 170 avg. Publisher: Bakken Books Dimensions: 5.5 x 8.5 Lexile® Measure: N/A ABOUT THE AUTHOR