Christian, Mary Blount

One night of star-watching turns into a mystery when Pedro sees a strange object in the sky.

Two hamsters mysteriously disappear on Pet Day at school. The children solve the mystery by gathering the facts.

Little Adam Cooper is missing. The Sherlock Street Detectives find out where Adam has gone.

The Sherlock Street Detectives try to find a way to turn white carnations red in time for Valentine's Day.

The Sherlock Street detectives concern for the environment instigates a search for the source of pollution in a local stream.

The Sherlock Street detectives study the facts to solve the mystery of the missing scarf.

When David's little brother's wagon is stolen, the Sherlock Street gang jumps in to investigate. The only clues they have are a strange bike left nearby, a dry spot where the wagon was left, and a dry newspaper.

A mysterious raider invades the Sherlock Street garbage cans so the Sherlock Street detectives begin to unravel the mystery.

When Ann discovers a balloon with a message in her backyard, the Sherlock Street gang searches for the sender.

A tree is mysteriously damaged late at night. This gives the Sherlock Street detectives an opportunity to learn about trees and then to find out who knocked down the tree.