Nine-year-old Nicholas Benedict, a boy without parents and afflicted with an unfortunate nose and narcolepsy, is sent to a new orphanage where he encounters vicious bullies, selfish adults, strange circumstances, and a mystery that could change his life forever.

"In the dead of night, a truck arrives in Slaughterville, a small town curiously named after its windowless slaughterhouse. Seven mysterious kids with suitcases step out of the vehicle and into an abandoned home on a dead-end street, looking over their shoulders to make sure they aren't noticed. When timid and lonely Ravani Foster covertly witnesses their arrival from his bedroom window, he is eager to learn everything he can about his new neighbors:...

Thirteen-year-old Sammy's penchant for speaking her mind gets her in trouble when she involves herself in the investigation of a robbery at the "seedy" hotel across the street from the seniors' building where she is living with her grandmother.

During a dinner party, the lights go out and Mrs. Reynard's beautiful diamond necklace is stolen, but Piggins the butler quickly discovers the real thief.

On Halloween night, seventh grader Sammy stumbles onto a mystery involving a twenty-year-old family feud and some heirlooms stolen by a man in a skeleton costume.

Nancy and her Clue Crew meet Miss LaLa, a superstar who grew up in River Heights, and investigate what happened to the special hat she ordered for her concert at the annual Flower Sculpture contest.

When Moxie McCoy's friend Emily receives a suspicious anonymous letter, Moxie and her little brother Milton investigate, but they must learn to get along together to solve the case.

When Echo's human friend, Rebecca Silver, is kidnapped by a witch who wants her for an assistant, Echo and the Bat Pack must risk their lives to rescue her.

"Harley Quinn loves fighting crime with her classmates like Wonder Woman, Batgirl, and Supergirl, but she always does it her with own madcap style--and a big mallet! It's no surprise that Harley can't resist getting involved with an upcoming inter-school battle of the bands and a fantastic cosmic carnival that appears only once a year--and this year, it's coming to Earth! But as things get stranger, Harley knows how to get to the bottom of a mystery--and...

When scary strangers appear at the Monroes' overnight campsite, Chester the cat tries to convince the family's two dogs that foul play is intended.