When Freddy hears that Herb Garble claims to have captured six Martians, he smells a rat - and the real Martians agree with him. Read online at archive.org. ... View More

A group of French schoolmates explore the history of the Abbey of Mont Saint-Michel.

In the fourth book of the series Bill and Susan are staying at Fraser’s farm. They explore the secret room above the granary and get involved with a mysterious artist.

While on a camping holiday our heroes are pulled into the mystery of a missing boy.

A young man murders an old woman for her money and is condemned to Siberia where he is redeemed by the love of a woman.

Seven Roman schoolboys help uncover a dangerous criminal in ancient Rome.

While Christmas shopping Susan and Bill meet a young boy who is being pursued by thugs who want his special box.

The story of witchcraft and conspiracy during the English Civil War.

Read online at archive.org

John Walters and the members of the Tomahawk Club set out to explore a cave he has found.

Freddy and his friends help solve the crime wave in Centerboro.

Read online at archive.org. 

Tales of that intrepid detective Father Brown.

A collection of stories and poems about strange events.  Includes Helpful Henry and The Left-Over Hat illustrated by Tibor Gergely. 

Jane and Tim Cooper and their friends the Maitlands are off on a holiday adventure in Devonshire.

A young girl and her two brothers come to England along with her father who is on sabbatical and her mother who was born in England. While living at Long Barrow House she and her brothers unearth the mystery of how Long Barrow House got its name.&nbs... View More

When Penny is trapped in an elevator between floors, she hears a conversation between some neighbors which seems suspicious to her. It is up to her to do some sleuthing to save the day! Read online at archive.org... View More

Every Saturday Luigi takes the bus from Italy to Switzerland for his violin lesson with Professor Tagliatini. The new young soldier with the long nose who checks for smugglers steals his cakes from his lunch box, until one day Professor Tagliatini te... View More

Peter has a series of adventures as he tries to return a key to an old man he once met.

A former classmate invites "professional student" Red Withers to lecture at a Catholic women's college in Indiana. A professor disappears, and the next morning a student is also missing.

Miss Bianca, Bernard and the Mouse Prisoner’s Aid Society are called on to rescue Miss Bianca’s mortal enemy from a gruesome fate. Read online at archive.org. ... View More

Wallace the orangutan likes to mingle with a crowd. Can you spot him?

Read online at archive.org.

Connie and her friend Billy investigate a mystery in their neighborhood.

Read online at archive.org. 

The Callendar family are again caught up in international intrigue.

During her visit to Tarnhelm, a huge old house on the California coast, Cory Winterslow discovers the secret of her past. Read online at archive.org.... View More

Skip Rollins decides to join 4-H and pursue his hobby of wildlife photography.

A novel of adventure and intrigue in the run up to World War I. This marks the first appearance of Richard Hannay.

A pair of kidnappers break in on the war between the White Roses - Bill Bergson, Anders Bengtsson, and Eva-Lotta Lisander - and the Red Roses.

February and her brother Friday get mixed up with an international crisis -- and Friday’s tunnel comes through. Read online at archive.org. ... View More

When Abby and Kit Hubbard moved into the family homestead on the New England coast, they were unprepared for the surprises the historic old house had in store for them. Read online at archive.org... View More

The young detective from The Alligator Case is back on the job in the case of the missing race horse.

The Callendar family is again caught up in an international intrigue.

Twins Ophelia and Cordelia find a (priceless) antique doll and carelessly lose it. Was it stolen or just borrowed by some child conniseur? Now they have to find it again.

When pies go missing from Ma Dog’s Bakery, Sam Cat and Dudly Pig, detectives, are on the case.

When the seven Roman schoolboys try to give their teacher a slave, he will have none of it and the detectives in togas are plunged into another mystery.

Sam Cat and Dudley Pig are called in to find out who is stealing food from the supermarket. Read online at archive.org. ... View More

The Callendars investigate the strange effects of Vita-Mix breakfast cereal on race horses. And what does Edward Lear have to do with it? Read online at archive.org. ... View More

A collection of short mystery stories. 

When Nicholas and Timothy break into the tunnel under the Alley, the adventure has just begun. Read online at archive.org. ... View More

Is the old lady next door a witch? This and other problems keep Beth busy the rest of the summer in her new home. Read online at archive.org... View More

Sam Pig and Dudley Cat are called in to find the letters of the alphabet.

Read online at archive.org. 

This edition includes The Great Pie Robbery and The Supermarket Mystery.... View More

The Callendars are caught up in a mystery, this time closer to home.

Annie is searching for her red mitten. She has already lost four of them this winter.

Read online at archive.org.

Corky's summer is full of activity as he cares for a collection of live snakes and helps his friends track down the mysterious killer of the local wildlife.

Sam Pig and Dudley Cat attend a wedding party to guard the bride’s jewels.

Read online at archive.org. 

Three friends, two mysteries and a mystery surprise.

Read online at archive.org. 

Two teen-age neighbors in a city apartment building become involved in the theft of money intended as a bribe for a public official. Read online at archive.org.... View More

Two teenage neighbors in a city apartment building are drawn into the mysterious activities at an oriental import company. Read online at archive.org... View More

Interviews for a research project lead two teenagers to discover the secret of a desperate man.

Read online at archive.org

Liza discovers a body wearing Mr. Greening's jogging jacket, but when she returns to the scene with a friend, the body is gone and later, Mr. Greening is wearing the jacket. Is he a murderer? Read online at archive.org... View More

Liza and Logan investigate a spiritualist they believe is trying to cheat their neighbor out of her inheritance. Read online at archive.org.... View More

Belinda’s can of blue paint is missing and she is sure somebody took it.

Read online at archive.org.

An early reader about the dog detective.

Read online at archive.org. 

Fifteen-year-old Julie investigates the suspicious behavior of the Thai exchange student staying with her family and comes to believe in the wish-granting power of a spirit that appears to have followed him across the ocean. Read online at archi... View More

The Adventures of Tintin is a series of comic albums created by Belgian cartoonist Georges Remi (1907–1983), who wrote under the pen name Hergé. The series was one of the most popular European comics of the 20th century. By the time of t... View More

Tommy Ballard has his way to make in the Depression, but with the help of his sturdy Model-T, he’s well on his way.

A traditional Irish ghost story translated from the Gaelic.

Read online at archive.org.

Skip Rollins decides to join 4-H and pursue his hobby of wildlife photography.

When a smooth-talking stranger with a fast rig comes to town, Chuck and Barney are in for a summer of mystery and excitement.

Breck Townsend went to New Hampshire to photograph the biggest buck and found himself tangling with a gang of poachers.

A collection of classic ghost stories from Irving and Alcott to Poe and Wilde. Read online at archive.org.... View More