Berends, Polly Berrien. THE CASE OF THE ELEVATOR DUCK.
Detective-in-training Gilbert has three days to solve the mystery of how a duck came to be in the elevator of his housing project that allows NO PETS OF ANY SORT.

*Christian, Mary Blount. THE MALTESE FELINE.
Helped by rival sleuth dopey Mae Donna Dockstadter, determined detectives Fenton P. Smith and Gerald Grubbs solve the mystery of the stray cat wearing a jeweled collar and the message "Help me, please!"

*Christian, Mary Blount. SEBASTIAN (SUPER SLEUTH) AND THE TIME CAPSULE CAPER.
Shaggy dog detective Sebastian follows his human, Police Detective John Quincy Jones, to a costume ball and sniffs out the solution to the mystery of an empty time capsule.

*Landon, Lucinda. MEG MACKINTOSH AND THE MYSTERY AT THE MEDIEVAL CASTLE.
Meg's detective kit and skills come in handy when a priceless jeweled chalice is stolen during her class's visit to Dundare Castle. Can you spot the clues and solve the mystery before Meg?

Levy, Elizabeth. THE CASE OF THE MINDREADING MOMMIES.
Can Kate and Max, detective partners and amateur magicians, solve the mystery of the vanishing Mother's Day presents in time for their Magical Mother's Day Show?

*Markham, Marion M. THE THANKSGIVING DAY PARADE MYSTERY.
The Dixon twins-- future detective Mickey and future scientist Kate--team up to solve the mystery of the disappearing marching band.

* More books about the same detective are published by this author.