Ella Mentry School's security guard proves overzealous in his pursuit of a peanut-butter-and-jelly-sandwich thief.

When a valuable antique goes missing during Santa's Workshop Holiday Spectacular, Griffin and his friends, who are volunteering as elves, set out to find the real thief after being named the chief suspects.

Birdie Gaux's dog, Bowser, considers himself in charge of security at 19 Gentilly Lane, so when the house is broken into Bowser wants to find the man responsible--but nobody seems to know what the culprits were looking for, or why a strange girl is asking questions about Birdie's father, a policeman who was killed in the line of duty years before Bowser was adopted.

Twelve-year-old Spade is a grave thief that gets caught up in a royal heist. Along the way, he meets Ember, the queen's niece, and together they race to solve the mystery of the legendary Deepstones and their connection to the deadly Woegon, the queen, a missing king and the mysterious pebble Spade finds in the Wyndhail cemetery.

Zenith and her friends may be dead--but lucky for them, even getting ghosted wasn't enough to tear them apart. The four of them were thick as thieves long before an unfortunate lab accident sent them careening into the afterlife. So when they hear about a machine that could return them to the land of the living, they are determined to steal it. Unfortunately, the magical device belongs to a dangerous necromancer who's out for their ectoplasm.

A friendly competition to grow the best organic garden is underway. Esmeralda, Annie, Oliver, and Rosamond are among the competitors. Just a few days before contest judging, some of Rosamond's tomatoes go missing, and Nate and Sludge are called to investigate.

A secret thief has stolen Johnny Boo's ice cream. Armed with his mighty magnifying glass, Johnny Boo will find all the clues and capture the vicious villain. The main suspect is a purple mountain whose peak looks suspiciously like it might be covered in vanilla ice cream. To battle this giant foe, Johnny Boo and his friends must team up and transform into their ultimate form: the MEGA JOHNNY ULTRA-BOO! But what if the mountain is innocent?

Dink, Josh, and Ruth Rose investigate possible crime at a summer camp, search for treasure in Plymouth, Massachusetts, hunt for the President's missing dog in Washington, D.C., and have a spooky experience during a sleepover in Sleepy Hollow.