Eleven-year-old Gilbert, self-styled private eye, takes on his toughest case when he finds a duck in the elevator of his housing project. In this easy-to-read mystery, the solution is credible, the plot is fresh, the style casual and natural.

Humor and mystery are perfectly combined in this first chapter book, as Flatfoot Fox, the smartest detective in the world, sets out to find who stole Fat Cat's glass eye.

This first book in the series finds Abby Jones and her pal, Potsie, squeezing into windows, sneaking onto subways and slithering into empty apartments, as they try to solve the mystery of the missing Hyacinth Macaw.

A vampire bunny? Chester the cat thinks the new arrival to the family is actually a vampire - and is convinced when white vegetables are drained of their juices. But how can the pets warn their masters of this new deadly danger?

Young detectives Wild Willie, King Kyle, and Lucky Lucy set out to discover the secret to soccer triumph when Lucy and Willie's soccer team, the Bruisers, cannot seem to escape their losing slump.

Claudia and Jamie run away from home and wind up living at the Metropolitan Museum of Art. There they are privy to the introduction of a new statue and immediately are suspicious of its authenticity.

Meg and her brother combine their knowledge of libraries with their talent for detection in order to find a valuable book concealed in the public library. Although the story is somewhat improbable, clues hidden in the text and illustrations give readers an opportunity to solve the mystery on their own.

When the king of Pooka Pooka's prize elephant is stolen, the king calls the world's greatest detective - Big Max - to find the elephant.

One fateful day, 16 people gather for the reading of the very strange will of the very rich Samuel W. Westing. To their surprise, the will turns out to be a contest, challenging the heirs to find out who among them is Westing's murderer - and the winner may become a millionaire!

Whenever ten-year-old Leroy "Encyclopedia" Brown's father, Chief of Police of Idaville, had a difficult case, Encyclopedia always managed to solve it at the dinner table. So, he decided to open his own detective agency.

Everyone knows Gawain is a most honorable goose. So when rubies, then gold, and finally even the famous Kalikak Diamond are found missing from the Royal Treasury, on one can believe that Gawain is the culprit. Still, he and King Basil the bear are the only ones with keys.

Camp Coral in Key West, Florida, is a happy vacation site for the Aldens and their new cousin, Soo Lee, but the Boxcar Children must investigate when a precious coral bed is destroyed on a nearby island.