At night, a ghost visits the library to find the answer to a riddle.

The Library Secret Service (hint: not a real organization) explains the rules for the care of library books.

The inspiration for a hit Disney film and named one of “13 Detective Book Series You Obsessed Over as a Kid” by BuzzFeed, the masterful Great Mouse Detective is back and ready to investigate a library haunting! Basil of Baker’s Street, the masterful mouse detective who studied under Sherlock Holmes, is on his way to a school reunion with his old friends from Ratcliffe College. Along for the trip is his steadfast companion, Doctor Dawson. But all is not well, as they soon learn that the dastardly Ratigan has escaped from prison in London. Could the rat possibly be planning revenge against his old nemesis, Basil himself? But before Basil and Dawson can worry too much about the wily rat, they hear another piece of worrying news. The duo arrives in Oxford only to be informed that the library of Basil’s old college is haunted! The students are thoroughly spooked, and the whole mess threatens to sour the festive mood of the reunion. Basil, for one, doesn’t believe in the supernatural and plans to put the rumors to rest. But the strange occurrences continue, without any obvious explanation. Is this one case that can stump even the Great Mouse Detective? And as Basil and Dawson dig deeper, are there even more sinister secrets afoot?

A brand-new young chapter book series from Edgar Award winner Dori Hillestad Butler! After successfully solving the mystery of the ghost in the library, Kaz and Claire land the first case for their detective agency—a haunted attic in a neighbor’s home! With a little help from Grannie, Kaz and Claire discover that what appeared to be something spooky has a much simpler explanation.

A brand-new young chapter book series from Edgar Award winner Dori Hillestad Butler! When ghost boy Kaz’s haunt is torn down and he is separated from his ghost family, he meets a real girl named Claire, who lives above the town library with her parents and her grandmother. Claire has a special ability to see ghosts when other humans cannot and she and Kaz quickly form a friendship. The two join forces to solve the mystery of the ghost that’s haunting the library. Could it be one of Kaz’s lost family members?

Kaz and Claire are back for a timely mystery in this adorable series by Edgar Award winner Dori Hillestad Butler! Kaz and Claire are called in for another ghostly mystery, and this ghost is always right on time. When Claire's friend tells the young detectives about his five o'clock ghost, Kaz wonders if it could be his own missing brother, Little John. Kaz and Claire search the house up and down, but they can't find any trace of Little John--or any other ghost. Yet when five o'clock comes along, the strange occurrences come back again...

Here is the eighth title in Edgar Award Winner Dori Hillestad Butler's not-too-scary chapter book mystery series, The Haunted Library. Kaz are Claire are called on for another case! A family thinks their house is haunted, making it difficult for them to sell it. Will Kaz and Claire be able to figure out what's going on, and find more of Kaz's family members along the way?

The ghost library is a room full of empty shelves where the ghosts go to listen to stories borrowed from unsuspecting children - until they try to borrow a book from Bo... Bo unable to let her book go travels with the ghosts to the ghost library and there she teaches them that stories exist everywhere, not just in books. This spooky picture book from bestselling author-illustrator David Melling has sold over 300,000 copies and continues to enchant children. 'A humourous tale with friendly ghosts... and images that will inspire your child to take on the role of story-teller.' Junior

Kaz and Claire’s new detective agency is a success! Their latest case, though, is proving to be the hardest yet. When Claire’s classmate says he saw a ghost backstage while rehearsing the school play, Kaz goes to school with Claire to investigate. From the description the boy gave, Kaz is sure it’s his mom—but where has she gone? Kaz and Claire search everywhere and find no trace of her, but the mysterious ghostly activities are still happening…