When Riley Zimmerman needs help pulling off the most ridiculous and wonderful prank the school has ever seen, the magical Locker 37 provides her with an equally ridiculous and wonderful rainbow hat that can clone anything that wears it.
A page-turning mystery brimming with lighthearted intrigue and essential middle-grade math skills, Math Mysteries: The Triplet Threat by author Aaron Starmer will have readers on the edge of their seats as they unravel the who-done it using math. Perfect for both mystery and math lovers, as well as kids who love puzzles, riddles, brainteasers, and adventure stories! It's the first day of the fourth grade at Arthimos Elementary and things are already off to a strange start--poisonous cookies, a zipline disaster, a missing iPad, and what are those strange sounds coming from the school custodian's wheelbarrow? Luckily the Prime Detectives--Abby “the Abacus” Feldstein, Cameron “Cam” McGill, and Gabriel “Gabe” Kim--are on the case! Using arithmetic, geometry, and logic, the Prime Detectives are sure to figure out who did what, when, and why! A gripping new middle grade mystery series, each book contains multiple, interlinked mysteries that readers help solve using math. Includes answers showing step-by-step solutions.
"The first book in a trilogy about a girl who claims she is visiting a parallel universe where a nefarious being called The Riverman is stealing the souls of children and the boy she asks to write her biography because she fears her soul may be next"--
“Katelyn Ogden was a lot of things, but she wasn’t particularly explosive, in any sense of the word.” Mara Carlyle’s senior year at Covington High in suburban New Jersey is going on as normally as could be expected, until the day—wa-bam!—fellow senior Katelyn Ogden explodes during third period pre-calc. Katelyn is the first, but she won’t be the last senior to spontaneously combust without warning or explanation. The body count grows and the search is on for a reason—Terrorism! Drugs! Homosexuality! Government conspiracy!—while the seniors continue to pop like balloons. Mara narrates the end of their world as she knows it with tell-it-like-it-is insight as she tries to make it to graduation in one piece through an explosive year punctuated by romance, quarantine, lifelong friendship, hallucinogenic mushrooms, bloggers, ice cream trucks, “Snooze Button™,” Bon Jovi, and the filthiest language you’ve ever heard the President of the United States use over Skype.