InvestiGators Book 9 Release Date: Everything You Need To Know About The Next Two Graphic Novels
The wait is finally over! As of December 23, 2025, fans of the beloved *InvestiGators* graphic novel series have not one, but two major upcoming releases to mark on their calendars, addressing the confusion around the official "Book 9" release date. The next adventure for super-sleuths Mango and Brash is split between a special interactive installment arriving in 2025 and the next main-series volume hitting shelves in 2026.
The latest updates from author John Patrick Green and publisher First Second confirm that the first book to arrive will be a unique, reader-involved experience, followed by the highly anticipated ninth full-length volume. This article breaks down the definitive release dates, titles, and plot details for both InvestiGators: Case Files and InvestiGators: Weather or Not, ensuring you are fully prepared for the next wave of sewer-surfing, crime-solving action.
The Next Two InvestiGators Books: Dates, Titles, and Details
The confusion surrounding "InvestiGators Book 9" stems from the upcoming release of a special interactive edition that is technically numbered as the ninth installment by some retailers, but is a departure from the main storyline format. The true ninth volume of the core series, a full-color comic book adventure, is set to follow. Here is the breakdown of the two major releases:
InvestiGators: Case Files (The Next Book to Release)
The immediate next installment in the *InvestiGators* universe is a brand-new, interactive experience designed to let young readers join the Special Undercover Investigation Team (S.U.I.T.) in a hands-on way. This is a must-have for fans who love to solve a mystery.
- Official Title: InvestiGators: Case Files
- Format: A special interactive, solve-along edition.
- Release Date: September 22, 2025
- Plot Details: This volume is a collection of six new, tricky mini-cases that Agents Mango and Brash need help cracking. Readers will be actively involved in finding clues, spotting suspects, and solving the mysteries alongside the alligator duo.
- Significance: This book serves as a fun bridge between the main series books, offering a different style of engagement while keeping the signature humor and pun-filled world of John Patrick Green alive.
InvestiGators: Weather or Not (The Official Main Series Volume 9)
The true continuation of the main narrative, following the events of *InvestiGators: Class Action* (Book 8), is titled *Weather or Not*. This volume promises a large-scale, dairy-based disaster that only the sewer-surfing super-sleuths can handle.
- Official Title: InvestiGators: Weather or Not
- Format: Full-color graphic novel, Volume 9 of the main series.
- Release Date: June 2, 2026
- Plot Details: Mango and Brash face a "dairy disaster" that has somehow replaced the city's entire water supply with milk. The case will also introduce the newest feline agents, the InvestiGatos, who are sure to add a new dynamic to the S.U.I.T. team.
- Anticipation: Fans are eager to see how the InvestiGators, known for their sewage-centric operations, handle a case involving a massive milk supply issue, and what role the new InvestiGatos will play in the agency.
The InvestiGators Universe: A Deep Dive into Topical Authority
The *InvestiGators* series, created by New York Times-bestselling author and illustrator John Patrick Green, has become a global phenomenon, selling millions of copies and cementing its place as a top-tier graphic novel for young readers. The series is often recommended for children aged 7-11 (Grades 2-6) and is a perfect stepping stone for fans of other popular graphic novel series like *Dog Man*.
The Core Entities and Characters
The success of the series lies in its vibrant cast of characters, the unique world-building of the S.U.I.T. organization, and the consistent flow of laugh-out-loud humor and puns. Understanding these key entities is essential for any serious fan.
The S.U.I.T. Agents and Allies
The Special Undercover Investigation Team (S.U.I.T.) is the organization responsible for maintaining peace and solving the most bizarre crimes. Their headquarters are famously located in the city's sewer system, which gives Mango and Brash their "sewer-surfing" moniker.
- Mango: One half of the alligator duo, known for his enthusiastic, often impulsive nature and his love of V.E.S.T. (Very Evil Stuff Team) villains.
- Brash: The other half of the duo, generally more cautious and level-headed than Mango, often serving as the straight man to Mango's antics.
- InvestiGatos: The newest feline agents set to debut in Weather or Not. Their introduction is a major point of interest for the series.
- Cilantro: A key recurring character and ally, often involved in the S.U.I.T. operations.
- S.U.I.T. Headquarters: The main base of operations, located in the sewers, where the agents receive their next assignments.
- Agent H: The head of S.U.I.T., responsible for dispatching the InvestiGators on their missions.
Major Villains and Antagonists
The series is known for its memorable, often pun-based villains that keep the InvestiGators on their webbed toes. The main antagonistic force is the Very Evil Stuff Team (V.E.S.T.).
- Crackerdile: A notorious, recurring antagonist who is a constant thorn in the side of S.U.I.T.
- Dr. Dumpster: A villain with a penchant for garbage-themed crimes.
- V.E.S.T.: The primary criminal organization, led by various nefarious characters throughout the series. They are the source of much of the "Very Evil Stuff" that Mango and Brash must investigate.
- Professor Stinkypants: Another memorable villain whose schemes often involve foul odors and chaos.
- The Chef: A culinary criminal who poses a unique threat to the city.
Complete InvestiGators Reading Order (Books 1-8)
To prepare for the release of Case Files and Weather or Not, new and existing fans should ensure they are caught up on the main series. The books are designed to be read in order to follow the overarching narrative and character development, though each volume contains a self-contained case.
- InvestiGators (Book 1)
- InvestiGators: Take the Plunge (Book 2)
- InvestiGators: Off the Hook (Book 3)
- InvestiGators: Ants in Our P.A.N.T.S. (Book 4)
- InvestiGators: Braver and Boulder (Book 5)
- InvestiGators: Heist and Seek (Book 6)
- InvestiGators: All Tide Up (Book 7)
- InvestiGators: Class Action (Book 8)
The upcoming releases will fit into the timeline as follows:
- September 2025: InvestiGators: Case Files (Special Interactive Edition)
- June 2026: InvestiGators: Weather or Not (Main Series Volume 9)
What Makes the InvestiGators Series a Mega-Smash-Hit?
The enduring popularity of the *InvestiGators* graphic novel series can be attributed to several key elements that resonate strongly with its target audience and parents alike. John Patrick Green has successfully blended a high-energy comic book style with genuinely clever writing, creating a unique reading experience.
- Pun-tastic Humor: The series is famous for its relentless stream of puns and wordplay, which makes it highly engaging and humorous for both children and adults reading along.
- Accessibility: The graphic novel format, with its vibrant illustrations and easily digestible panels, makes it an excellent choice for reluctant readers and those transitioning from early readers to longer chapter books.
- Action-Packed Plots: Every book is a high-stakes, mystery-solving adventure, filled with twists, turns, and constant action that keeps the pace fast and captivating.
- Character Chemistry: The dynamic between the contrasting personalities of Mango (the goofy, excitable one) and Brash (the serious, sensible one) provides a solid foundation for comedy and teamwork lessons.
With a new interactive book arriving in September 2025 and the next main-series volume, *Weather or Not*, coming in June 2026, the future of the *InvestiGators* series is looking bright and packed with more sewer-surfing, crime-fighting fun. Fans should keep an eye on official announcements for any further updates from John Patrick Green as the release dates approach.
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