Basil, mouse and master detective seeking the truth behind the theft of the Mousa Lisa, must also solve the mystery of his companion's disappearance.

Named one of “13 Detective Book Series You Obsessed over as a Kid” by Buzzfeed.com and the inspiration for a hit Disney film, the masterful Great Mouse Detective series is now available to a whole new generation of readers! Basil—the famous sleuth of mousedom—lives in the cellar of Sherlock Holmes’s house. A devoted admirer of the great detective, he has learned his craft by listening at the feet of Holmes himself. But will it be enough to help Basil solve his most baffling mystery yet? The Mystery of the Missing Twins is one of the strangest cases in Basil’s career. With only a few crumbs of clues with which to find answers, how is he ever going to figure out where Angela and Agatha are being kept—and, of course, who mouse-napped them! Will Basil’s mouse sleuthing skills be up to the task of finding the twins before it’s too late?

Are any of these plants dangerous, and do any of them really work? Where did they come from, and where are they available now? How can health-care practitioners gain the confidence of their patients to learn whether they are using alternative medicines for specific illnesses, symptoms, or injuries? Perhaps most intriguing, which of these plants might be waiting to take the place of known antibiotics as pathological organisms become increasingly resistant to modern miracle drugs?

Are any of these plants dangerous, and do any of them really work? Where did they come from, and where are they available now? How can health-care practitioners gain the confidence of their patients to learn whether they are using alternative medicines for specific illnesses, symptoms, or injuries? Perhaps most intriguing, which of these plants might be waiting to take the place of known antibiotics as pathological organisms become increasingly resistant to modern miracle drugs?

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?

Includes an excerpt from Basil and the lost colony.