Fight or Flight (Diary of a Wimpy Kid #21): Volume 21

By Jeff Kinney

Greg Heffley is about to learn that surviving middle school is no easy feat.

In Fight or Flight, the 21st book in Jeff Kinney's globally bestselling Diary of a Wimpy Kid series, Greg's hard-earned expertise on navigating the rough-and-tumble world of middle school is put to the test.

When a secret binder filled with Greg's notes on the school's biggest bullies falls into the wrong hands, his world quickly begins to unravel. Now it's a race against time before the truth comes out. Will Greg throw in the towel--or go down swinging?

A hilarious read for kids ages 8-12, packed with classic Wimpy Kid humor, unforgettable middle-school drama, friendship twists, and Jeff Kinney's signature illustrations.

Collect all the books in the #1 bestselling Diary of a Wimpy Kid series: Diary of a Wimpy Kid (#1) Rodrick Rules (#2) The Last Straw (#3) Dog Days (#4) The Ugly Truth (#5) Cabin Fever (#6) The Third Wheel (#7) Hard Luck (#8) The Long Haul (#9) Old School (#10) Double Down (#11) The Getaway (#12) The Meltdown (#13) Wrecking Ball (#14) The Deep End (#15) Big Shot (#16) Diper verl de (#17) No Brainer (#18) Hot Mess (#19) Partypooper (#20) Fight or Flight (#21)

See the Wimpy Kid World in a whole new way with the #1 bestselling Awesome Friendly books, told from the perspective of Greg Heffley's best friend Rowley Jefferson: Diary of an Awesome Friendly Kid: Rowley Jefferson's Journal Rowley Jefferson's Awesome Friendly Adventure Rowley Jefferson's Awesome Friendly Spooky Stories Rowley Jefferson's Awesome Friendly Spooky Stories 2

• Format: Hardcover
• Language: English
• ISBN: 1419782703
• ISBN13: 9781419782701
• Release Date: October 2026
• Publisher: Amulet Books
• Length: 224 Pages
• Age Range: 8 to 12 years
• Grade Range: Grades 3 to 7