Goofballs Books in Order

Randall Crandall hires the Goofballs to protect his valuable collection from a notorious thief. A superhero party provides cover for the investigation, but the young detectives must use disguises and unusual schemes to identify the criminal.

When Randall Crandall's horse Thunder disappears, the Goofballs take the case. Odd clues involving flowers and a storm send Jeff, Brian, Mara, and Kelly into a comic investigation that tests their disguises and detective skills.

Badger Point School prepares to celebrate its hundredth anniversary, but the new statue of its first principal disappears. The Goofballs follow a trail of peculiar clues to solve the theft before the celebration loses its centerpiece.

Jeff, Brian, Mara, and Kelly investigate a supposedly haunted house where someone vanished years earlier. Their Halloween case requires sharp observation and help from Sparky the Goofdog as eerie discoveries complicate the Goofballs' search for answers.

The Goofballs prepare to perform in their school's talent show, but missing instruments, ill-fitting costumes, and a vanishing director threaten the event. Their detective skills become essential to finding out what is going wrong backstage.

Objects keep disappearing from Ms. Becker's kindergarten classroom, including its goldfish. The Goofballs pose as teachers to investigate, but keeping pace with clever pupils and an expanding list of missing belongings proves harder than expected.