As soon as twelve-year-old Steve Brixton opens a detective office in his backyard, he and his best friend Dana are caught up in a tangle of cases, from breaking up a ring of piratical smugglers, to recovering a stolen surfboard, to tracking down a fifth-grader's missing gym shorts.

Principal Wagner confidently deals with a faculty washroom crisis, a psychic parrot, and a terrorizing gerbil, but when sixty-five erasers go missing, he enlists the help of the school's best problem solver and locator of lost items, twelve-year-old Lyle Williams, aka Mudshark.

Tucker the Jack Russell terrier packs his bags and takes the train to the beach for an adventure, but after a fun day he discovers that he does not know how to get home.

Danny Dragonbreath and his friends try to help the senior reptiles of Sunny Acres find a lost item.

After being noticed by songbird Serenade, Pinkie Pie is offered a spot as a backup dancer for the famous pop star, but when things go missing during rehearsals it's up to Pinkie Pie to track down the culprit.

When she goes to work with her mother on a Saturday, Adventure Girl uses her own special methods to help find a missing report.

Paige Darling loves the stuffed rabbit her grandmother has made for her, but when she ties a helium-filled balloon to Bun Bun Button the toy gets loose and goes floating away, and it may take some Darling luck to bring her home.

Eleven-year-old Neela must solve the mystery when her beautiful but cursed veena, a classical Indian musical instrument, goes missing.

Traction Man, an action figure, teams up with the high-tech but not-so-bright Turbodog to rescue Scrubbing Brush, his missing sidekick, from the terrible underworld of the bin.

"When a boy's abuela accuses him of being careless with his beloved Bongo, he devises a trap and catches the toy thief red-handed"--