651 books • 47 series
Book #2: Karate Clue
Book #3: First Day, Worst Day
Book #4: Jump Shot Detectives
Book #5: Dinosaur Disaster
Book #1: Extreme Danger
Book #1: Tower Treasure
Book #1: The Tower Treasure #1
Book #2: The Arctic Patrol Mystery
Book #2: Running on Fumes
Book #4: Deathgame
Book #5: The Clue of the Screeching Owl
Book #6: Shore Road Mystery
Book #10: Mystery at Devil's Paw
Book #1: Secret of the Red Arrow
Book #2: Mystery of the Phantom Heist
Book #3: The Vanishing Game
Book #4: Into Thin Air
Book #5: Peril at Granite Peak
Book #3: Boardwalk Bust
Book #4: Thrill Ride
Book #5: Rocky Road
Book #15: Slip, Slide, and Slap Shot
Book #1: The Gross Ghost Mystery
Book #1: Dead on Target
Book #2: Evil, Inc.
Book #2: Hardy Boys (3 in 1): Diplomatic Deceit / Flesh and Blood
Book #3: Cult of Crime
Book #3: Pacific Conspiracy
Book #3: The Hardy Boys Casefiles
Book #7: Top Secret
Book #8: Survival Tactics
Book #9: The Genius Thieves
Book #10: Hostages of Hate
Book #11: Brother against Brother
Book #12: The Perfect Getaway
Book #1: The Video Game Bandit
Book #2: The Missing Playbook
Book #3: Water-Ski Wipeout
Book #4: Talent Show Tricks